Bloomfield 8781A Users Manual 628 Tea Brewer OM

8781A to the manual f8148a5e-0c77-427f-8d23-ad2b013b7f3a

2015-02-02

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628

OWNERS MANUAL
for
AUTOMATIC
COFFEE / TEA
BREWERS
MODEL:

8781A
Includes:
Installation
Operation
Use & Care
Servicing Instructions

Model 8781A Brewer
with optional
8799 3 gallon
Iced Tea Dispenser

PRINTED IN UNITED STATES OF AMERICA
p/n 76201 Rev. F ECN-12898

M628

050705 cps

WARRANTY STATEMENT
It also does not apply if the serial nameplate has been
removed or unauthorized service personnel perform service.
The prices charged by Bloomfield Industries for its products
are based upon the limitations in this warranty. Seller’s
obligation under this warranty is limited to the repair of defects
without charge by a Bloomfield Industries Authorized Service
Agency or one of its sub-agencies. This service will be
provided on customer’s premises for non-portable models.
Portable models (a device with a cord and plug) must be
taken or shipped to the closest Authorized Service Agency,
transportation charges prepaid, for services.

All electrical equipment manufactured by BLOOMFIELD
INDUSTRIES is warranted against defects in materials and
workmanship for a period of one year from the date of original
installation or eighteen (18) months from the date of shipment
from our factory, whichever comes first, and is for the benefit
of the original purchaser, except that:
a. airpots carry a 30 day parts warranty only.
b. dispensers; i.e., tea and coffee carry a 90 days parts
warranty only, excludes decanters.
THE FOREGOING OBLIGATION IS EXPRESSLY GIVEN IN
LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, WHICH ARE HEREBY EXCLUDED.

In addition to restrictions contained in this warranty, specific
limitations are shown below (Additional Warranty Exclusions).
Bloomfield Industries Authorized Service Agencies are located
in principal cities.

BLOOMFIELD INDUSTRIES DIVISION / SPECIALTY
EQUIPMENT MANUFACTURING CORPORATION SHALL
NOT BE LIABLE FOR INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES FROM ANY
CAUSE WHATSOEVER.

This warranty is valid in the United States and void elsewhere.
Please consult your classified telephone directory or your food
service equipment dealer; or, for information and other details
concerning warranty, write to:
Service Parts Department
Bloomfield Industries
P.O. Box 280
Verdi, NV 89439
Phone: (888) 492-2782
Fax: (888) 492-2783

This warranty is void if it is determined that upon inspection by
an Authorized Service Agency that the equipment has been
modified, misused, misapplied, improperly installed, or
damaged in transit or by fire, flood or act of God.

SERVICE POLICY AND PROCEDURE GUIDE
ADDITIONAL WARRANTY EXCLUSIONS
1.

SHIPPING DAMAGE CLAIMS PROCEDURE
NOTE: For your protection, please note that equipment in
this shipment was carefully inspected and packaged by
skilled personnel before leaving the factory.
Upon acceptance of this shipment, the transportation
company assumes full responsibility for its safe delivery.
IF SHIPMENT ARRIVES DAMAGED:
1. VISIBLE LOSS OR DAMAGE: Be certain that any
visible loss or damage is noted on the freight bill
or express receipt, and that the note of loss or damage
is signed by the delivery person.
2. FILE CLAIM FOR DAMAGE IMMEDIATELY:
Regardless of the extent of the damage.

CONCEALED LOSS OR DAMAGE: if damage is
unnoticed until the merchandise is unpacked, notify the
transportation company or carrier immediately, and file
“CONCEALED DAMAGE” claim with them. This
must be done within fifteen (15) days from the date the
delivery was made to you. Be sure to retain the
container for inspection.

Bloomfield Industries cannot assume liability for damage or
loss incurred in transit. We will, however, at your request,
supply you with the necessary documents to support your
claim.

M628 76201 Owners Manual 8781A Tea Brewer

7. Full use, care and maintenance instructions are supplied
with each machine. Those miscellaneous adjustments
noted are customer responsibility. Proper attention will
prolong the life of the machine.
8. Travel mileage is limited to sixty (60) miles from an
authorized Service Agency or one of its sub-agencies.
9. All labor shall be performed during normal working hours.
Overtime premium shall be charged to the customer.
10. All genuine Bloomfield replacement parts are warranted
for ninety (90) days from date of purchase on nonwarranted equipment.
Any use of non-genuine
Bloomfield parts completely voids any warranty.
11. Installation, labor and job check-out are not considered
warranty.
12. Charges incurred by delays, waiting time or operating
restrictions that hinder the service technicians ability
to perform services are not covered by warranty.
This includes institutional and correctional facilities.

Resetting of safety thermostats, circuit breakers,
overload protectors, or fuse replacements unless
warranted conditions are the cause.
All problems due to operation at voltages other than
specified on equipment nameplates; conversion to
correct voltage must be the customer’s responsibility.
All problems due to electrical connections not made in
accordance with electrical code requirements and
wiring diagrams supplied with the equipment.
Replacement of items subject to normal wear, to include
such items as knobs and light bulbs. Normal maintenance
functions including adjustment of thermostats, microswitches,
and replacement of fuses and indicating lights are not
covered under warranty.
All problems due to inadequate water supply, such as
fluctuating, or high or low water pressure.
All problems due to mineral/calcium deposits, or
contamination from chlorides/chlorines. De-liming is
considered a preventative maintenance function and is
not covered by warranty.

TABLE OF CONTENTS
WARRANTY STATEMENT
SPECIFICATIONS
FEATURES & OPERATING CONTROLS
PRECAUTIONS & GENERAL INFORMATION
AGENCY LISTING INFORMATION
INSTALLATION INSTRUCTIONS
OPERATION
BREWING COFFEE
BREWING TEA
CLEANING INSTRUCTIONS
TROUBLESHOOTING SUGGESTIONS
SERVICING INSTRUCTIONS
Deliming Instructions
EXPLODED VIEW & PARTS LIST
SERVICE KITS
WIRING DIAGRAMS

xi
1
2
3
3
4
6
9
10
11
12
14
19
20
22
23

Thank You for purchasing this
Bloomfield Industries appliance.
Proper installation, professional
operation and consistent
maintenance of this appliance will
ensure that it gives you the very
best performance and a long,
economical service life.
This manual contains the
information needed to properly
install this appliance, and to use,
care for and maintain or repair the
appliance in a manner which will
ensure its optimum performance.

SPECIFICATIONS
VOLTS
1ø

WATTS

AMPS
1ø

POWER SUPPLY
CORD

8781A

120 VAC

1500 W

12.5 A

6' with NEMA 5-15P

M628 76201 Owners Manual 8781A Tea Brewer

MODEL

APPLICABILITY
This manual applies to the following Bloomfield Industries products:
8781A
1

FEATURES AND OPERATING CONTROLS

M628 76201 Owners Manual 8781A Tea Brewer

PRECAUTIONS AND GENERAL INFORMATION
WARNING: Electric Shock Hazard
All servicing requiring access to non-insulated components must be performed by qualified
service personnel. Do not open any access panels which require the use of tools. Failure to
heed this warning can result in electrical shock.
WARNING: Injury Hazard
All installation procedures must be performed by qualified personnel with full knowledge of all
applicable electrical and plumbing codes. Failure could result in property damage and
personal injury.
WARNING Electric Shock Hazard
Brewer must be properly grounded to prevent possible shock hazard. DO NOT assume a
plumbing line will provide such a ground. Electrical shock will cause death or serious Injury.
WARNING: Burn Hazard
This appliance dispenses very hot liquid. Serious bodily injury from scalding can occur from
contact with dispensed liquids.
This appliance is intended for commercial use only.
This appliance is intended for use to brew beverage products for
human consumption. No other use is recommended or
authorized by the manufacturer or its agents.
This appliance is intended for use in commercial establishments,
where all operators are familiar with the appliance use,
limitations and associated hazards. Operating instructions and
warnings must be read and understood by all operators and
users.

M628 76201 Owners Manual 8781A Tea Brewer

Except as noted, this piece of equipment is made in the USA
and has American sizes on hardware. All metric conversions
are approximate and can vary in size.
The following trouble shooting, component views and parts lists
are included for general reference, and are intended for use by
qualified service personnel.

CAUTION: Equipment
Electrical Damage
DO NOT plug in or energize this
appliance until all Installation
Instructions are read and followed.
Damage to the Brewer will occur if
these instructions are not followed.
CAUTION:
Burn Hazard
Exposed surfaces of the
appliance, brew chamber and
decanter or dispenser may be
HOT to the touch, and can cause
serious burns.

This manual should be considered a permanent part of this
appliance. The manual must remain with the appliance if it is
sold or moved to another location.

AGENCY LISTING INFORMATION
This brewer is

listed under UL file E9253.

This brewer meets
Standard 4 only when installed,
operated and maintained in accordance with the enclosed
instructions.

E9253

STD 4

INSTALLATION

READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION
IMPORTANT:
To enable the installer to make
a quality installation and to
minimize installation time, the
following suggestions and tests
should be done before the
actual unit installation is started:

Unpack the unit. Inspect all components for completeness and
condition. Ensure that all packing materials have been removed
from the unit.
Verify that the Spray Head Gasket and Spray Disk are properly
installed.
LEVELING THE UNIT
Verify that an adjustable leg is installed at each corner of the
brewer, and that a rubber foot is installed on each leg.
Set Brewer in its operating location. Level the Brewer. A spirit
level should be placed on the top of the unit, at the edge, as a
guide when making level adjustments.
Level the unit from left to right and front to back by turning the
adjustable feet. Be sure all four feet touch the counter to prevent
tipping.
PLUMBER’S INSTALLATION INSTRUCTIONS

CAUTION: Unstable
Equipment Hazard

NOTE: Water supply inlet line
must meet certain minimum
criteria to insure successful
operation of the brewer.
Bloomfield recommends 1/4"
copper tubing for installation of
less than 12 feet and 3/8" for
more than 12 feet from a 1/2"
water supply line.

DO NOT use a saddle valve with a self-piercing tap for the water
line connection. Such a tap can become restricted by waterline
debris. For systems that must use a saddle tap, shut off the main
water supply and drill a 3/16” (minimum) tap for the saddle
connection, in order to insure an ample water supply. Remember
to flush the line prior to installing the saddle.
The brewer must be installed on a water line with average
pressure between 20 PSI and 90 PSI. If your water pressure
exceeds 90 PSI at anytime, a pressure regulator must be
installed in the water supply line to limit the pressure to not more
than 90 PSI in order to avoid damage to lines and solenoid.
A water shut-off valve should be installed on the incoming water
line in a convenient location (Use a low restriction type valve,
such as a 1/4-turn ball valve, to avoid loss of water flow thru the
valve.

M628 76201 Owners Manual 8781A Tea Brewer

It is very important for safety
and for proper operation that the
brewer is level and stable when
standing in its final operating
position. Provided adjustable,
non-skid legs must be installed
at each corner of the unit.
Failure to do so will result in
movement of the brewer which
can cause personal Injury and/
or damage to brewer.

Brewer should be connected to a POTABLE WATER, COLD
WATER line. Flush water line before connecting to Brewer.

INSTALLATION (continued)
NSF requires that the brewer be able to be moved for cleaning
underneath. Loops of copper tubing will satisfy this requirement.
See Figure 2 below.

NOTE: This equipment must be
installed to comply with all
applicable federal, state and
local plumbing codes and
ordinances.

WARNING ELECTRIC
SHOCK HAZARD:
Brewer must be properly
grounded to prevent possible
shock hazard. DO NOT
assume a plumbing line will
provide such a ground.
Electrical shock will cause death
or serious injury.

Fig. 2 Water Supply Installation
In some areas, local codes require a backflow preventer (check
valve) to be installed on the inlet water line. If a backflow
preventer is used, you must install a water hammer arrester in
the incoming line, between the backflow preventer and the
brewer inlet, as far away from the brewer as space will allow.
This will relieve the excessive back pressures that can cause
faucet leaks and solenoid malfunctions.

IMPORTANT:
Supply power must match
nameplate for voltage and
phase. Connecting to the
wrong voltage will damage the
brewer or result in decreased
performance. Such damage is
not covered by warranty.

ELECTRICIAN’S INSTALLATION INSTRUCTIONS

M628 76201 Owners Manual 8781A Tea Brewer

REFER TO ELECTRICAL SPECIFICATIONS - Page 1
Check the nameplate to determine correct electrical service
required for the brewer to be installed.

IMPORTANT: Do not connect
brewer to electrical power until
you are ready to fill the tank.
See instructions at left.

IMPORTANT: Before connecting to electricity, make sure
brewer is connected to the water supply.
Model 8781A is equipped with a cord and plug. It requires a
115 - 125 volt 20 amp circuit (50/60 Hz, 2 wire plus ground, with
NEMA 5-15R or 5-20R Receptacle).

GROUND
PIN

NEMA 5-15P
PLUG

NEMA 5-15R
RECEPTACLE

IMPORTANT: The ground
prong of the plug is part of a
system designed to protect you
from electrical shock in the
event of internal damage.
Never cut off the ground prong
nor twist a blade to fit an existing receptacle. Contact a licensed electrician to install the
proper circuit and receptacle.

OPERATION

M628 76201 Owners Manual 8781A Tea Brewer

Fig. 3 Brewer Operation Diagram
6

OPERATION (continued)
A. START-UP
For initial start-up, or if the brewer has not been used for an
extended period of time:
♦ Be sure spray disk and brew gasket are properly installed in the
brew head.
♦ Be sure the water supply is properly connected and the water
supply valve is turned ON.
♦ Be sure the WATER TANK IS FILLED.
IMPORTANT: Fill the water tank before energizing this unit:
1. Insert the "COFFEE" brew chamber (empty) and place an empty
container in place under the brew chamber.
2. Be sure the TANK HEATER SWITCH on back of brewer "OFF".
3. Plug the unit into an appropriate receptacle.
4. Press COFFEE/TEA switch to "COFFEE". Press BREW SWITCH.
Water will begin filling the tank. When the water fill stops, press the
switch again. Repeat until water flows from the brew chamber.
This will usually require running three (3) cycles.
5. When water starts to flow from the brew chamber, tank is full.
When all dripping has stopped, discard all water in container.
6.

Turn TANK HEAT SWITCH "ON". The heating elements will begin
heating the water in the tank. When the water has reached the
proper temperature, the “READY TO BREW” light will glow.

M628 76201 Owners Manual 8781A Tea Brewer

B. OPERATIONAL NOTES
1.

COFFEE
a. When brewing coffee, be sure to use the "coffee" brew
chamber (uses the tall rack, and does not state "tea only" on
the outside of the shell).
b. Press the COFFEE/TEA switch to "COFFEE".
c. COFFEE MODE will brew 64 oz. of coffee.
d. Use a standard 64 oz. decanter.

TEA
a. When brewing tea, be sure to use the "tea" brew chamber
(uses the short rack, and states "tea only" on the outside of the
shell).
b. Press the COFFEE/TEA switch to "TEA".
c. Select either "1 gallon" or "3 gallon brew".
d. Use a dispenser of the appropriate size. Be sure dispenser is
positioned so that water from the BYPASS NOZZLE flows into
the dispenser.

IMPORTANT:
Tank must be full of water
before tank heater switch
"ON". Heating element
will be damaged if allowed
to operate without being
fully submerged in water.
Damage caused by
operating the brewer
without water in the tank
is NOT COVERED BY
WARRANTY.

NOTE:
After tank is filled, turn the
tank heater switch "on".
Brewer will require
approximately 18 minutes
to heat water to operating
temperature.

OPERATION (continued)
WATER HEATER
Water temperature is sensed by a thermobulb
inserted into the water tank. This temperature signal
is fed to the mechanical thermostat.
The setpoint temperature is adjustable. Heating
element is energized by the thermostat.
Excessive temperature will trip the hi-limit safety
switch. The hi-limit will automatically reset when the
brewer cools.
Fig. 4 Heat Control Diagram

WATER FLOW
AUTOMATIC OPERATION
In COFFEE mode, pressing the BREW switch
causes the timer to energize the coffee brew
solenoid valve. This allows water from an external
water supply to flow into the water tank.
In TEA mode, pressing the BREW switch causes
the timer to energize the tea brew solenoid valve.
This allows water from an external water supply to
flow into the water tank. Additionally, the tea bypass
solenoid is energized, sending cold dilution water
from an external source to the dispenser.
Water flowing into the tank forces a like amount of
heated water out of the tank to perform the brew.
POUR-OVER OPTION

AUTOMATIC OPERATION TIMER
The length of time a brew or bypass solenoid is open
is controlled by the timer. The timer signal is routed
to either the coffee brew solenoid, or to the tea brew
and bypass solenoids, according to the position of
the mode switch.
HOT WATER FAUCET
The faucet water coil is submerged in the hot water
tank and draws heat from the brew water. Water
going to the water coil is not controlled by either
brew solenoid valve.
Fig. 5 Water Flow Diagram

Hot water is provided at the faucet, at supply water
pressure, any time the faucet shut-off valve is OPEN.

M628 76201 Owners Manual 8781A Tea Brewer

If an external water source is unavailable, one
decanter of cold water may be poured into the
pour-over opening to brew coffee. Pour-over is not
recommended for brewing tea.

BREWING COFFEE
A. PREPARATION

CAUTION:
Burn Hazard

Examine the coffee brew chamber
to verify that the tall the wire rack
is in place.

Exposed surfaces of the
brewer, brew chamber and
decanter may be HOT to
the touch, and can cause
serious burns.

Place one (1) genuine Bloomfield
paper filter into the wire rack in the
coffee brew chamber.
Add a pre-measured amount of
fresh coffee grounds.

CAUTION:
Burn Hazard

Gently shake the brew chamber to
level the bed of grounds.
Slide the brew chamber into place
under the brew head.

Fig. 6 Coffee Brew Chamber

B. AUTOMATIC OPERATION
BE sure “READY TO BREW” light is lit.
Place the appropriate EMPTY decanter in place under the brew
chamber.
Press the "COFFEE/TEA" switch to "COFFEE".
Press the “BREW” switch. The coffee brew solenoid will open for
an amount of time determined by the timer setting, admitting a
measured quantity of water into the tank.

M628 76201 Owners Manual 8781A Tea Brewer

Inlet water will displace a like amount of heated water from the tank.
The hot water will be forced into the brew head where it will spray
over the bed of grounds. Freshly brewed coffee will begin to fill the
decanter under the brew chamber.
When the flow and all dripping stops at the end of the brew cycle,
the coffee is ready to serve.
Discard the contents of the brew chamber and rinse it in a sink.
When the ”READY TO BREW” light glows, the brewer is ready for
another brew cycle.

To avoid splashing or
overflowing hot liquids,
ALWAYS place an empty
decanter under the brew
chamber before starting
the brew cycle. Failure to
comply can cause serious
burns.
CAUTION:
Burn Hazard
After a brew cycle, brew
chamber contents are
HOT. Remove the brew
chamber and dispose of
used grounds with care.
Failure to comply can
cause serious burns.
NOTE: Water for the hot
water faucet is heated in a
coil inside of the water
tank. Use of the faucet will
not affect the volume of
water delivered for a brew.
However, overuse of the
faucet during a brew may
lower the temperature of
the brew water.

BREWING TEA
CAUTION:
Burn Hazard
Exposed surfaces of the
brewer, brew chamber and
dispenser may be HOT to
the touch, and can cause
serious burns.

CAUTION:
Burn Hazard
To avoid splashing or
overflowing hot liquids,
ALWAYS place an empty
dispenser under the brew
chamber before starting
the brew cycle. Failure to
comply can cause serious
burns.
CAUTION:
Burn Hazard
After a brew cycle, brew
chamber contents are
HOT. Remove the brew
chamber and dispose of
used grounds with care.
Failure to comply can
cause serious burns.

Examine the tea brew chamber
to verify that the short the wire rack
is in place.
Place one (1) genuine Bloomfield
paper filter into the wire rack in the
tea brew chamber.
Add an amount of fresh tea leaves
to the brew chamber appropriate to
the desired 1 gallon or 3 gallon
brew volume.
Gently shake the brew chamber to
level the bed of tea leaves.

Fig. 7 Tea Brew Chamber

Slide the brew chamber into place
under the brew head.
B. AUTOMATIC OPERATION
BE sure “READY TO BREW” light is lit.
Place the appropriate EMPTY dispenser in place under the brew
chamber. If a brew-thru lid is used, be sure the bypass opening in
the lid is directly under the bypass nozzle.
Press the "COFFEE/TEA" switch to "TEA".
Press the "TEA VOLUME SELECTOR" switch to either "1 GAL" or
"3GAL" position as desired
Press the “BREW” switch. The coffee brew solenoid will open for
an amount of time determined by the timer setting, admitting a
measured quantity of water into the tank.
Inlet water will displace a like amount of heated water from the tank.
The hot water will be forced into the brew head where it will spray
over the bed of grounds. Freshly brewed coffee will begin to fill the
dispenser. Additionally, a measured amount of cold dilution water
will flow from the bypass nozzle into the dispenser.
When the flow and all dripping stops at the end of the brew cycle,
the tea is ready to serve.
Discard the contents of the brew chamber and rinse it in a sink.
When the ”READY TO BREW” light glows, the brewer is ready for
another brew cycle.

M628 76201 Owners Manual 8781A Tea Brewer

NOTE: Water for the hot
water faucet is heated in a
coil inside of the water
tank. Use of the faucet will
not affect the volume of
water delivered for a brew.
However, overuse of the
faucet during a brew may
lower the temperature of
the brew water.

A. PREPARATION

CLEANING INSTRUCTIONS
PROCEDURE: Clean Coffee/Tea Brewer
PRECAUTIONS: Disconnect brewer from electric power.
Allow brewer to cool.
FREQUENCY:

Daily

TOOLS:

Mild Detergent, Clean Soft Cloth or Sponge
Bristle Brush, Bottle Brush

CAUTION:
Burn Hazard
Brewing and serving
temperatures of coffee are
extremely hot.
Hot coffee will cause
serious skin burns.

CAUTION:
Electric Shock
Hazard
Do not submerge or immerse
brewer in water.

1. Disconnect brewer from electric power.
Allow brewer to cool before cleaning.
2. Remove decanter or dispenser.
3. Remove and empty brew chamber.
4. Remove the spray disk from the brew head (See figure 8):
Press up on the spray disk ears, then turn the disk to the left
to unlatch. Remove the gasket from inside the brew head.
5. Wipe inside of brew head and area around the brew head
with a soft clean cloth or sponge moistened with clean water.

IMPORTANT:
DO NOT use steel wool, sharp
objects, or caustic, abrasive or
chlorinated cleansers to clean
the brewer, decanters or
dispensers.

6. Wash the spray disk in a sink using warm water and a mild
detergent. A bristle brush may be used to clear clogged
spray holes. Rinse the spray disk with clean water and allow
to air dry.

M628 76201 Owners Manual 8781A Tea Brewer

7. Wash the brew chamber in a sink using warm water and a
mild detergent. A bristle brush may be used to clean the
inside. Rinse with clean water and allow to air dry.
8. Wipe the exterior of the brewer with a soft clean cloth or
sponge moistened with clean water.
10. Reinstall the gasket INSIDE the brew head, then reinstall the
spray disk.
11. Be sure the wire rack is in place in the brew chamber, then
reinstall the brew chamber.
12. Clean decanters and dispensers by filling with warm soapy
water. Scrub the inside of decanters with a bottle brush.
Empty and rinse with clean water. Wipe the exterior with a
soft clean cloth or sponge moistened with clean water. Invert
and allow to air dry.

Procedure is complete

Fig. 8 Cleaning

TROUBLESHOOTING SUGGESTIONS
SYMPTOM

POSSIBLE CAUSE

SUGGESTED REMEDY

Water won't heat

Brewer unplugged or circuit
breaker tripped

Check power supply cord
Check / reset circuit breaker

Temperature setpoint too low

Set for desired temperature

Hi-Limit safety switch tripped

Allow to cool hi-limit will selfreset

Damaged internal component or Examine wiring & connectors,
wiring
thermostat and heating element
Repair/replace as needed
Timer out of adjustment

Adjust timer

Coffee level (only) too low

Plugged coffee solenoid strainer

Clean strainer

Tea level too high or low

Proper volume not selected

Set tea volume selector switch
to desired volume

Tea level (only) too low

Plugged tea solenoid strainer

Clean strainer

"TEA" not selected

Press COFFEE/TEA switch to
"TEA"

Too many filter papers or wrong
filter paper

Use one (1) genuine Bloomfield
filter per brew

Brew chamber dispense hole
plugged

Thoroughly clean brew
chamber

Wire rack not in place

Install proper wire rack

Too much coffee or too fine a
grind

Use correct grind and amount
of coffee

Spray gasket improperly
installed

Check/reinstall gasket on
INSIDE of brew head

Spray disk plugged

Clean spray disk

Brew chamber overflows

Sprays water from brew head

No brew (faucet flows OK)

Damaged internal component or Check brew switch, wiring
wiring
& solenoid. Repair, replace as
needed

No dilution flow from bypass
nozzle

"TEA" not selected

Press COFFEE/TEA switch to
"TEA"

Damaged internal component or Check wiring & tea bypass
wiring
solenoid. Repair, replace as
needed
No brew plus no flow from hot
water faucet

No flow from hot water faucet

Water supply OFF

Turn water supply ON

Water filter (if used) plugged

Replace filter element

Faucet valve turned OFF

Turn faucet valve ON

Faucet plugged

Disassemble faucet, clean

M628 76201 Owners Manual 8781A Tea Brewer

Coffee level too high or low

TROUBLESHOOTING SUGGESTIONS
SYMPTOM

SUGGESTED REMEDY

Poor coffee quality

Keep brewer, brew chamber and decanters clean.
Install a taste and odor filter in water supply, and replace cartridges
regularly.
Use a quality coffee with a consistent roast. Use proper grind
and amount of coffee per brew. Freshly ground coffee beans
make the best coffee beverage.
Be sure to use the coffee brew chamber with the tall wire rack.

Poor tea quality

Keep brewer, brew chamber and dispenser clean.
Install a taste and odor filter in water supply, and replace cartridges
regularly.
Use a quality tea. Use proper amount of tea leaves per brew for
the selected brew volume.

M628 76201 Owners Manual 8781A Tea Brewer

Be sure to use the tea brew chamber with the short wire rack.

SERVICING INSTRUCTIONS
CAUTION
Electric Shock
Hazard
Opening access panels on this
brew may expose uninsulated
electrical components.
Disconnect brewer from
electrical power before
removing any panel.

ACCESS PANELS
TOP PANEL:
Remove top panel to access hot water tank, thermostat, heating
element, brew circuit tubing, faucet valve and piping, and
switches.
Top panel is held by two screws at the rear and a retaining lip at
the front.
FRONT PANEL:
Remove front panel to access timer, wiring and bypass nozzle
plumbing connections.
Front panel is held by two screws at the bottom and a retaining lip
at the top.
SOLENOID DOOR:
Remove solenoid door to access solenoid plumbing and electrical
connections.
Solenoid door is held by two screws and a retaining lip.

M628 76201 Owners Manual 8781A Tea Brewer

Fig. 9 Access Panels

SERVICING INSTRUCTIONS
TEMPERATURE ADJUSTMENT
Unplug power cord or turn circuit breaker OFF. Remove top
panel.
Pull vent tube out of tank lid and insert a thermometer of known
accuracy in hole. Reconnect brewer to electrical power.
Place empty container under brew chamber. Energize brewer
and allow unit to heat. When the READY TO BREW light first
glows, read the temperature displayed on thermometer.
Adjust thermostat by turning shaft; clockwise increases
temperature. 1/8 turn = approximately 10ºF, or 5.6ºC.
Refer to Table 1 below for proper brewing temperature based on
altitude.

Upon completion, remove thermometer and reinstall the vent line
and top panel.

TEMP. (ºF)

205

NOTE: Optimum brewing
temperature is 195ºF to 205ºF
(90ºC to 96ºC).
Thermostat should be adjusted
to a maximum temperature of
200ºF (95ºC).
IMPORTANT:
A mechanical thermostatwill
maintain temperature within
±5ºF.
To prevent boiling water in the
brewer, controller should be
adjusted to a maximum
temperature equal to the local
boiling temperature minus 5ºF,
or 200ºF (94ºC), whichever is
less.

IDEAL
BREWING
TEMPERATURE

200
195
0
50
0
1,
00
0
1,
50
0
2,
00
0
2,
50
0
3,
00
0
3,
50
0
4,
00
0
4,
50
0
5,
00
0
5,
50
0
6,
00
0
6,
50
0

190

MAXIMUM
TEMPERATURE
SETTING

NOTE: 1/8 turn = approximately
10ºF (5.6ºC).

ELEVATION (feet above seal level)
BOILING
POINT OF
WATER

100
97

IDEAL
BREWING
TEMPERATURE
RANGE

94
91

0
15
0
30
0
45
0
60
0
75
0
90
0
1.
05
0
1.
20
0
1.
35
0
1.
50
0
1.
65
0
1.
80
1. 0
95
0

ELEVATION (meters above seal level)
Table 1

These procedures involve
exposed electrical circuits.
These procedures are to be
performed by qualified
technical personnel only.

BOILING
POINT OF
WATER

210

TEMP. (ºC)

M628 76201 Owners Manual 8781A Tea Brewer

Fig. 10 Checking and Adjusting Brew Temperature

CAUTION
Electric Shock
Hazard

Boiling Temperature by Altitude
15

MAXIMUM
TEMPERATURE
SETTING

Fig. 11 Adjust Thermostat

SERVICING INSTRUCTIONS (continued)
IMPORTANT: Water pressure
must be between 20 p.s.i and
90 p.s.i. flowing pressure.
If water pressure exceeds this
value, or if water pressure
varies greatly, a pressure
regulator must be installed in
the water supply line.

SOLENOID TIME ADJUSTMENT
The amount of water dispensed automatically during a brew cycle
is controlled by the timer. This adjustment must be performed in
the COFFEE mode.
Place empty decanter under brew chamber. Press BREW
switch. Brewer should dispense one full decanter of water. To
adjust amount:
Remove brew chamber and button plug. Adjust timer; clockwise
increases time. Run several cycles to check amount of water
delivered. Replace button plug.
REMOVE TANK LID ASSEMBLY
Unplug brewer or turn circuit breaker OFF. Turn OFF water
supply. Remove top panel.
Disconnect brew fill and outlet tubes from tank lid fittings.
Disconnect faucet supply and outlet tubes from flare fittings on
tank lid.

Fig. 12 Adjust Solenoid Time
IMPORTANT: Before setting
assembly into tank, make sure
tank lid gasket is properly
seated on flange of lid.

Disconnect all wiring from thermostat, hi-limit and heating
element.
Loosen center screw on tank hold-down bracket. Remove
hold-down bracket by sliding short slotted end off of locking stud
and lifting it off. Remove cover assembly by lifting it straight up.
Reassemble in reverse order.
REPLACE THERMOSTAT
Unplug brewer or turn circuit breaker OFF. Turn OFF water
supply. Remove top panel.
Disconnect all wiring from thermostat only. Loosen and free jam
nut from pass-thru fitting securing temperature sensing bulb.
Remove two screws holding thermostat to bracket.
Lift out thermostat, sensing bulb and thermostat gasket.
Reassemble in reverse order.
REPLACE HEATING ELEMENT
Remove tank lid assembly per above.
Remove two hex nuts holding element to cover. Pull element
from mounting holes.

IMPORTANT: When replacing
heating element, also replace
seal gaskets.

Reassemble in reverse order.

M628 76201 Owners Manual 8781A Tea Brewer

IMPORTANT: When mounting
thermostat, be sure a new seal
washer is placed below the
fitting on the capillary line.
Push sensing bulb thru tank lid
until fitting seats.
Tighten capillary lock nut only
enough to ensure no water
leakage. Excessive tightening
is not necessary.

SERVICING INSTRUCTIONS (continued)
REPLACE SOLENOID
Symptom: Automatic brewer will not flow water; or,
automatic brewer drips continuously from brew head.
Unplug power cord or turn circuit breaker OFF. Turn OFF and
disconnect water supply from brewer inlet fitting.
Unscrew water inlet fitting from solenoid.
Remove two screws holding access door in place. Remove two
screws holding solenoid to door.
Remove brew water tube from solenoid. On faucet side, remove
faucet water tube from bypass side of solenoid by pressing the
white ring portion of the tube fitting tightly against the metal
portion while pulling the tube off of the solenoid.
Disconnect wiring from solenoid.
Transfer solenoid bracket to new solenoid.
Reassemble in reverse order.
CLEAN SOLENOID SCREEN

Fig. 13

Symptom: Automatic brewer will not flow water.

Remove Faucet
Supply from Solenoid

Unplug power cord or turn circuit breaker OFF. Turn OFF and
disconnect water supply from brewer inlet fitting.
Unscrew water inlet fitting from solenoid.

M628 76201 Owners Manual 8781A Tea Brewer

Using needle-nose pliers, withdraw strainer screen from solenoid.
Clean screen under faucet. A stiff bristle brush may be used if
necessary.
Reinsert screen in solenoid. Be careful to maintain correct
orientation. (The OPEN END of the screen goes in FIRST.)
Reassemble in reverse order.

Fig. 14 Clean Strainer Screen

REPLACE TIMER ASSEMBLY
Unplug power cord or turn circuit breaker OFF.
Remove front panel. Remove knob and three screws holding
timer to bracket. Disconnect wiring to timer.
Reassemble in reverse order.
Adjust timer as described on page 13
REPLACE HOT WATER FAUCET COIL
Symptom: Brewer drips continuously from brew head, except
when faucet valve is turned OFF.
Remove tank lid assembly per above.
Remove two hex nuts hot water coil to cover. Pull coil from
mounting holes.
Reassemble in reverse order.
17

IMPORTANT: When replacing
water faucet coil, also replace
seal gaskets.

SERVICING INSTRUCTIONS (continued)
NOTE: Any abrasion or
roughness on the flat end of the
seat cup will require replacing
the seat cup:
Work the seat cup out of the
bonnet and off of the end of the
stem.
Install a new seat cup, making
sure the knob on the stem is
fully inserted into the pocket of
the seat cup, and the skirt of the
seat cup is fully inserted into the
bonnet.

REPAIR HOT WATER FAUCET
Remove top panel and turn faucet valve OFF.
Unscrew aerator cap from faucet and remove handle retaining clip.
Do not let faucet body turn.
Pull bonnet assembly from faucet body.
Examine the interior of the faucet body and the surface of the seat
cup. Clean out any debris in the faucet body, using a stiff bristle
brush if necessary.
Examine the aerator. Clean any debris from the screen or flow
straightener, using a stiff bristle brush if necessary.
Reassemble in reverse order.
REPLACE CONTROL PANEL LIGHT or SWITCH
Unplug power cord or turn circuit breaker OFF.
Using Switch Removal Tool (p/n 83209) to remove TEA VOLUME
SELECT, BREW SWITCH or STOP BREW switch. Use a thin
screwdriver to pry light or COFFEE/TEA switch from mounting
hole. Disconnect leads.
Reassemble in reverse order.

SEAT CUP

Fig. 15 Faucet Repair
M628 76201 Owners Manual 8781A Tea Brewer

SERVICING INSTRUCTIONS (continued)
PROCEDURE: Delime the Water Tank
PRECAUTIONS: Disconnect brewer from electric power.
Allow brewer to cool.
FREQUENCY:

As required (Brewer slow to heat)

TOOLS:

Deliming Solution
Protective Gloves, Goggles & Apron
Mild Detergent, Clean Soft Cloth or Sponge
Bristle Brush, Bottle Brush
Large Sink (or other appropriate work area)

1. Unplug power cord. Turn off the water shut-off valve and
disconnect the water supply line from the brewer inlet fitting.

CAUTION CHEMICAL BURN
HAZARD
Deliming chemicals are caustic.
Wear appropriate protective
gloves and goggles during this
procedure.
Never siphon deliming
chemicals or solutions by
mouth.
This operation should only be
performed by qualified and experienced service personnel.

2. Remove the tank lid assembly as described on page 13.
3. Remove the water tank from the brewer body by lifting
straight up. Empty all water from the tank. Set the tank back
into the brewer.
4. Mix 2 quarts of deliming solution according to the
manufacturer’s directions. Carefully pour the deliming
solution into the water tank. Lower the lid assembly back
onto the tank. Allow to sit for 30 minutes, or as directed by
the manufacturer.

M628 76201 Owners Manual 8781A Tea Brewer

5. At end of soaking period, remove lid assembly from tank.
Thoroughly rinse internal components of lid assembly with
clear water. Using a stiff bristle brush, scrub the heating
element and faucet water coil to remove lime and calcium
build-up. Rinse with clean water. Store lid assembly in a safe
location.
6. Remove the tank from the brewer and empty. Using a stiff
bristle brush, scrub the interior of the water tank to remove
lime and calcium build-up. Rinse with clean water.
7. Set the tank back into the brewer. Reassemble the tank lid to
the water tank. Make sure the gasket is properly in place,
then reinstall lid clamps.
8. Reinstall wiring to heating element and thermostat.
Reassemble piping for the faucet. Verify that all internal
components are dry, then reinstall the top panel.
10. Reconnect brewer to electrical supply and reconnect water
supply.
11. Install the brew chamber without filter paper or grounds.
Run at least three full brew cycles and discard all water
generated.
12. Brewer is ready to use.

IMPORTANT: DO NOT spill,
splash or pour water or deliming
solution into or over any internal
component other than the inside
of the water tank.

IMPORTANT: DO NOT allow
any internal components to
come into contact with the
deliming solution. Take care to
keep all internal components
dry.

NOTE: Repeat steps 4 thru 5
as required to remove all scale
and lime build-up.
NOTE: Normally, silicone
hoses do not need to be
delimed. Should deliming
hoses become necessary,
Bloomfield recommends
replacing the hoses.

8781A EXPLODED VIEWS & PARTS LIST

M628 76201 Owners Manual 8781A Tea Brewer

8781A EXPLODED VIEWS & PARTS LIST (continued)

8781A SERVICE KITS
SERVICE KITS
FAUCET REPAIR KITS
82573 Handle
82575 Seat Cup
82576 Faucet Repair Kit (Includes Handle, Seat Cup,
Spring, Stem, Pin & Bonnet
82682 Retainer Clip
84804 Aerator Replacement Kit (Includes O-Ring,
Aerator Disk & Aerator Cap
84870 Aerator Repair Kit (Includes O-Ring & Aerator
Disk)

SOLENOID REPAIR KITS
73282 Solenoid Complete, Dual (.60 gpm + .19 gpm)
75685 Solenoid, Complete, (.75 gpm with Bypass)
85218 Inlet Fitting Kit (Includes Screen, Washer, Inlet
Fitting & Cap)
85219 Inlet Strainer

M628 76201 Owners Manual 8781A Tea Brewer

TANK LID ASSEMBLY
8541WF-300 Spare Cover Assembly (120V,
1500W, With Hot Water Coil - all
parts mounted to cover)

M628 76201 Owners Manual 8781A Tea Brewer

8781A WIRING DIAGRAM

Bloomfield Industries, Inc.
Division of Carrier Commercial Refrigeration
In US and Canada
Telephone: 775-698-5700
Fax:
888-492-2783
Fax:
800-356-5142 (for orders only)
website: www.wellsbloomfield.com

PRINTED IN UNITED STATES OF AMERICA

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