Frigidaire Ffmv162Lb Wiring Diagram

FBD2400KB 316495069

2015-06-12

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MICROWAVE OVEN TECH SHEET

Schematic Diagram
Warning : Power must be disconnected before servicing this appliance
MODEL NO. : (C)/FMV152K; C/FFMV162L;C/FFMV164L

BR:BROWN
WH:WHITE
BK:BLACK

RD:RED
BL:BLUE

GY:GREY

GN:GREEN

PK:PINK

MODEL NO. : (C)/FMV152K; C/FFMV162L;C/FFMV164L

YW-32

OG:ORANGE BR:BROWN
YW:YELLOW

YW-32

BK-17

WH-31

2 BK

1 BK

GN

12

T/TABLE
MOTOR

WH-15

WH:WHITE

RD:RED

BK:BLACK

BL:BLUE

GY:GREY
PK:PINK

GN:GREEN

WH-15
BK-24

GN-23

OG-18

YW-6
BK-17
WH-16

RD-5

1

30 WH

3 BK

6

BOTTOM THERMAL
CUT-OUT
(1 20/0)
4 BK

L

H.V.CAPACITOR
VENT
MOTOR

19 YW

COOKTOP
LAMP

OG-27

WH-12
POWER
RELAY

WH
FA

H.V.DIODE
BK-1

MGT TUBE

F

CAVITY
THERMOSTAT

BK-2

RD

POWER
CORD
H.V.TRANS

BK-2

20 BL

5 RD

1

RD

RD

BL-25

BK-10

MGT
THERMOSTAT

BK-3

WH-9

BK-8

WH-11

17 BK

BK

WH

HOOD
THERMOSTATA

OG-27

WH

BK

WH-12

BK-1

GN-28

YW-6

BK-8

BK-4

15 WH

YW-7

6 YW

16 WH

TTM

18 OG

FM

4

OUT

8 BK

12 WH

POWER RELAY
(RELAY 2)

PRIMARY
SWITCH

PRIMARY
INTERLOCK ( UPPER)

7 YW

H.V.DIODE

10 BK

MAGNETRON
THERMOSTATA

BK

GY-26
BK-24

FAN
MOTOR

SUB RELAY
(RELAY 1)

BOTTOM
THERMOSTAT

BK-4

BK-10

PCB

WH

L
120V
OVEN
LAMP

YW-29

22 BR

3

BK-3

120V
TURNTABLE
MOTOR

H.V.CAPACITOR

MAGNETRON

COOKTOP
LAMP

GND

CONTROL P.W.B. ASS'Y

OVEN LAMP

YW-21

YW-29

21 YW

23 GN

LAMP RELAY

NOISE FILTER

YW-19

GN-23

WH-30

L.V.T

MOTOR
CONDENSER

BL-20

GN-28

ON
(RY3)

Parts Layout
OVEN
THERMOSTAT

OVEN
LAMP

BR-22
MGT THERMAL
CUT-OUT
(1 60/95)

29 YW

9

MOTOR
CAPACITOR

8

OG-18

L

VENT MOTOR

PARTS LEADS

BL-20
28 GN

24 BK

LOW
(RY4)

7

HARNESS LEADS

FAN
MOTOR

WH-16

GY-26

HOOD THERMAL
CUT-OUT
(40/70)
27 OG

25 BL

E. A microwave leakage check to verify
Compliance with the Federal performance
Standard should be performed on each
oven prior to release to the owner.
F. Do not attempt to operate the oven if the
door glass is broken.

GROUND

YW-7

BL-25

T.P.

26 GY

HI (RY5)

designed in this manual before the oven
Is released to the owner.

T/TABLE
MOTOR

DOOR
SENSING
SWITCH

WH-31
CAVITY
THERMAL
CUT-OUT
(1 10/0)

VENT
MOTOR

VENT RELAY

and latch.
5. Evidence of dropping or abuse.
C. Before turning on microwave power for
any service test or inspection within the
microwave generating compartments.

YW:YELLOW

check the magnetron. Waveguide or
transmission line. And cavity for proper
alignment, integrity and connection.
D. Any detective or mis-adjusted
components in the interlock, monitor, door
seal, and microwave generation and
transmission systems shall be repaired.
replaced. or adjusted by producers.

WH

OG:ORANGE

A. Do not operate or allow the oven to be
operated with the door open.
B. Make the following safety checks on all
ovens to be serviced before activating the
Magnetron or other microwave source,
and make repairs as necessary.
1. Interlock operating.
2. Proper door closing.
3. Seal and sealing surfaces ( Arcing,
wear and other damage.)
4. Damage to or loosening of hinges

POWER SUPPLY : FILTER ASS'Y
SINGLE PHASE
ONLY
FUSE
BK

GN

PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID PROSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

Warning : Power must be disconnected before servicing this appliance

WH-11

Disconnect from Electrical Supply Before Servicing Unit

WH-9

CAUTION

Wiring Diagram

MONITOR
SWITCH

MOTOR
CONDENSER

IN

NOISE
FILTER

MONITOR
INTERLOOK
SWITCH

9 WH

11 WH

H.V.TRANSFORMER
MONITOR
SWITCH

FAN MOTOR

32 YW

BOTTOM
THERMOSTAT

DOOR
SENSE
SWITCH (BOTTOM)

FA

DOOR
SENSING
SWITCH

Made in china

31 WH

HOOD THERMOSTAT
PRIMARY
SWITCH

NOTE: For servicing replacement use 16GA,105 C thermoplastic covered wire

H.V.
TRANS

11

except for high voltage leads or as noted on special leads.

F

12

COOK TOP
LAMPS

H.V.
CAPACITOR

MAGNETRON
H.V.DIODE

NOTE: Door is open

Switch Chart

Component tests
Other component tests

SWITCH

DOOR

CHECK BY
Disconnect the wires at the Primary Interlock Switch.
Check from the common terminal
to the normally opened terminal.

_

Door sensing Disconnect the wires at the sensing interlock Switch.
Check from the common terminal and
Interlock
Normally closed terminal

_

Primary
Interlock

Monitor
Interlock

Disconnect the wires at the Monitor Switch.
Check from the common terminal and
Normally closed terminal .

WARNING

+

Personal injury/Product Hazard

_

( +) CONTINUITY
_
( ) NO CONTINUITY

Test

Components
T/Table Motor

Disconnect the power supply cord
after performing any test or repairs
to the microwave.
from the outlet before removing the
outer cabinet from the unit.
Check that all wire leads are in the
Discharge the high voltage capacitor
Correct position before operating
and remove the lead wires from
The microwave oven.
The primary winding of the high voltage
Grasp wire connectors when
transformer before conducting any of
removing the wire leads from
microwave parts.
the following tests.
Conduct all operation tests with 1 liter Failure to follow these instructions may
of water in the oven.
result in electrical shock or other
Conduct a microwave energy test
Personal injury or in product damage.

+

+

L

N

1. Remove wire leads.
2. Measure resistance. ( ohm meter scale:

Results
Normal:
Approximately: 3.3k ohms

Rx1000)

Fan Motor

1. Remove wire leads.
Normal:
2. Measure resistance. ( ohm meter scale:

Approximately: 97.4 ohms

Rx1)

High voltage components

DOOR
OPEN
L
DOOR
CLOSE

DOOR
CLOSE

Primary
Interlock
Switch

Door
Sensing
Switch

Monitor
Interlock
Switch

N

Transformer
Secondary
Terminal

Primary
Interlock
Switch

Door
Sensing
Switch

Filament
Terminals

Monitor
Interlock
Switch

Note: These Diagrams are not intended to show a complete circuit, they represent the position of switches
during “DOOR OPEN” and “DOOR CLOSED”. (continuity checks only)

Primary
Terminal

Magnetron

OUTPUT POWER OF MAGNETRON

Cooling
Fins

CAUTION MICROWAVE RADIATION
PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE
GENERATOR OTHER PARTS CONDUCTING MICROWAVE ENERGY.
The output power of the magnetron can be measured by performing a water temperature rise test.
Equipment needed:
* Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm)
* One glass thermometer with mercury column
NOTE: Check line voltage under load. Low voltage will lower the magnetron output.
Make all temperature and time tests with accurate equipment.
1. Fill the one liter glass vessel with water.
_ 1 C).
2. Stir water in glass vessel with thermometer, and record glass vessel’s temperature (“T1”, 10+
3. After moving the water into another glass vessel, place it in the center of the cooking tray.
Set the oven to high power and operate for 47 seconds exactly.
( 3 seconds included as a holding time of magnetron oscillation)
4. When heating is finished, stir the water again with the thermometer and measure the temperature ( “T2”).
5. Subtract T1 from T2. This will give you the water temperature rise. ( T )
6. The output power is obtained by the following formula;
45 : Heating Times (sec)
Output =
4.187x1000x T+0.55xMcx(T2-T0)
( 3 seconds included as a holding time
42
of magnetron oscillation.)
4.187 : Coefficient for water
1000 : Water ( cc )
T : Temperature Rise (T2-T1)
T0 : Room Temperature
Mc : Cylindrical borosilicate glass weight
7. Normal temperature rise for this model is 9.9 C to 10.3 C at ‘HIGH’.
NOTE 1: Variations or errors in the test procedure will cause a variance in the temperature rise.
Additional power test should be made if temperature rise is marginal.
NOTE 2: Output power in watts is computed by multiplying the temperature rise (step 5) by a factor
of 91 times the of centigrade temperature.

Capacitor

1. Remove wire leads.
2. Measure resistance .( ohm meter scale: Rx1)
Primary winding
Secondary winding
Filament winding
3. Measure resistance .( ohm meter scale: Rx1000)
Primary winding to ground
Filament winding to ground
1. Remove wire leads. Install the magnetron seal in the
correct position .Check that the seal is in good condition.
2. Measure resistance .( ohm meter scale: Rx1)
Filament winding
3. Measure resistance .( ohm meter scale: Rx1000)
Filament to chassis

1. Remove wire leads.
2. Measure resistance .( ohm meter scale: Rx1000)
Terminal to terminal

Terminal to case
Diode

1. Measure continuity. Forward .( ohm meter scale: Rx1000)

Some inexpensive
Meters may indicate
Infinite resistance in
both directions

2. Measure continuity. Reverse .( ohm meter scale: Rx1000)

Ventilation Motor

Approx. 0.334+2% ohm.
Approx. 118.7+2% ohm.
0 ohm..
Normal: Infinite.
Normal: Infinite.

Normal: Less than 1 ohm
Normal: Infinite.

Normal:
Momentarily indicates several
ohm, and then gradually
returns to infinite.

Normal: Infinite.
Normal: Continuity.
Abnormal: Infinite.
Normal: Infinite.
Abnormal: Continuity.

1. Remove wire leads.
2. Measure resistance .( ohm meter scale: Rx1)
2 level: White and Blue wire

Approximately 35.2 ohms

p/n 316495069



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