Frigidaire Oven Wiring Diagram

TECHNICAL DATA SHEET
SMART BOARD
The SMART BOARD contains the power relay,
LVT, vent blower triac, surface light relays, and
other components to perform the proper
9
switching circuits. Several disconnect plugs are 10
also located on the SMART BOARD:
16
CON 01 - Ribbon Connector
CON 02 - Vent Blower Connector
ERROR MESSAGE
CON 03 - Primary L.V.T & Main Relay
CON 04 - Door Sensing & Probe Connector Display Signal
CON 05 - Gas Sensor Connector • F1 Open thermal sensor(convection)
• F2 Shorted thermal sensor(convection)
(PLMV168, GLMV168)
• F3 Keypanel shorted for > 60seconds
• F4 Open humidity sensor
• F5 Shorted humidity sensor
Many diagnostic circuit tests can be made at the
* Error sound will beep for 3 cycles (2 second on,
disconnect plugs. (Refer to diagnosis flow chart
1 second off) loudey in upper condition.
and simplified schematic in mini-manuals.)
SENSOR COOKING
(PLMV168, GLMV168)
CONTROL PERFORMANCE TEST
The Sensor Cooking function uses a special gas
Set Clock-Touch clock pad, enter time of day,
sensor which detects both humidty (steam) and
AM/PM touch start pad.
hydrocarbons (food odors) during the cooking
Alternately touch each function pad and enter
process, The sensor is a plug-in device located in
time or temperature selection for the function. the vent area at the top left hand corner of the
cavity behind the grille.
Also change power levels.
Touch Clear-Off after each function test to
clear that function.
Repeat procedure for each function to
exercise each pad.
Bracket Barrier
Control and display should respond to each entry.
Display should revert to Time-Of-Day after each
Clear-Off. Refer results to Diagnostic Flow Chart.
KEY PANEL TEST
If necessary the key panel pads can be verified
by a continuity test. For ease of handling the key
SENSOR COOKING TEST
panel should be removed and placed on a flat
surface.
1. Place 1/3 cup tap water in oven.
Check continity between connections at end of
2. Touch VEGETABLE , the oven starts immediately.
ribbon (Use high scale).
3. Control Beeps and shuts off.
RIBBON
4. Touch CLEAR/OFF
PAD CONN. PAD CONN.
A) Test OK - Normal
ADD 30SEC 4-11 REHEAT 8-11
B) Test Fails - Check Sensor
BEVERAGE 9-11 CLOCK 7-13
C) Test Fails - See Sensor Test Below
POWER LEVEL 3-14 TIMER 4-13
DEFROST 4-15 START 3-11
BEEPER VOLUME 9-12 HELP 4-12 SENSOR TEST (QUICK TEST)
AUTO NITE LIGHT 6-12 POTATO 6-10
(PLMV168, GLMV168)
AM/PM 9-13 1 9-16
SURFACE LIGHT 7-12 2 8-16
1. With 2 fingers touch and hold the following
VENT FAN 8-12 3 7-16
pads at the same time:
TURNTABLE 5-12 4 6-16
REMINDER 5-13 5 5-16 and
7 8
TIME COOK 5-15 6 4-16
2. Observe diagnostic number in display
DELAY START 6-13 7 9-15
(numbers approximate)
CLEAR 3-12 8 8-15
POPCORN 7-11 9 7-15 15-185 (Normal-verify with "detection test")
TEMPCOOK/ROAST 3-15 0 6-15
213 or Higher (sensor failed to open, sensor
GROUND MEATS 3-10
unplugged, wiring or smart board)
VEGETABLE 9-10
Less than 6 (shorted sensor, or smart board).
- FMV145 -
NOTE: Only heater terminals (H : Black
BEVERAGE 6-11
and Red leads) can be checked
REHEAT 9-11
POPCORN 5-11 with ohmmeter (30
CAUTION : DO NOT ATTEMPT TO CHECK
SENSOR TERMINALS(White
and Orange leads).
CAN DAMAGE SENSOR.
PUB. NO. 31-40015
MWO TROUBLESHOOTING FLOW CHART
START - VERIFY MWO POWER
D
CORD PLUGGED INTO OUTLET
1~9
1. SET CLOCK (IF NEEDED)
YES NO
2. PLACE CUP OF WATER AND VERIFY OUTLET
IS DISPLAY
10~16 NEON LIGHT TESTER IN UNIT VOLTAGE PRESENT
LIT?
3. PROGRAM UNIT TO COOK
B YES
PERFORM KEY
NO
KEY PANEL PANEL
YES
UNIT ABLE TO
NO
TEST OK?
PROGRAM?
Condition
PRESS START
YES
HVT IS GROUNDED
"*" REFER TO FRONT
MONITOR
SERVICE IMMED PAGE FOR MORE INFO
REPAIR /
BREAKER DOOR
REPLACE
SWITCH
TRIPS? NO
NO OK?
AFTER A YES
FEW SEC
CHECK RESISTANCE
RESISTANCE
OF HVC - 2K OHM
< 2K OHMS?
SCALE ON DVM
WATER HEATS /
NEON TESTER A
LIGHTS?
YES
CIRCLE NODES:
NO
INTERMITTENT
FOLLOW THE
PROBLEM - CALL TAG ARROWS - EXAMPLE:
INSTALL CLAMP ON
TEAM FOR
AMMETER TO MWO's
RESOLUTION
INTERNAL FUSE THEN
A
GO TO
LEAD
MAGNETRON &
ABOUT
< 2A > 8A HV COMPTS
5A
ARE GOOD
A
CAVITY
LIGHT
MAGNETRON
ONLY ON REPLACE
BLOWER AND RETEST & REASSEMBLE -
PRIMARY DOOR
CAVITY LIGHT END
SWITCH
ON?
NO
REPLACE PCB
B ABOUT 120V
YES
B
B
PROGRAM UNIT FOR
PRIMARY
COOKING AND START -
ABOUT 0V
SWITCH OK
CHECK VOLTAGE AT RELAY
AGAIN
(PLMV168, GLMV168)
CHECK VOLTAGE ACROSS POWER
YES
YES
RELAY ON PCB (DOOR CLOSED,
WIRING
NO COOKING PROGRAMMED) -
SHOULD GET ABOUT 120V 120V? TO HVT
NO NO
OK?
CMO ONLY - IF AN OTR, GO TO
"OTR START" BLOCK
< 1A
INSTALL CLAMP ON AMMETER
TO A MAGNETRON LEAD
CHECK RESISTANCE
INFINITE OF SECONDARY SIDE
(OPEN) OF HVT (SINGLE LEAD
OTR START
TO HVC)
1. UNPLUG UNIT
2. DISCHARGE HVC
> 8A
3. SET DVM ON 2K OHM SCALE REPLACE HVD
SOME
4. MEASURE HVD SIDE OF HVC & HVC AND
RESISTANCE
RETEST
TO GROUND
DVM - DIGITAL VOLT METER
A
HVC - HIGH VOLTAGE CAPACITOR
HVD - HIGH VOLTAGE DIODE B
HVT - HIGH VOLTAGE TRANSFORMER
C
LVT - LOW VOLTAGE TRANSFORMER
D
TCO - THERMAL CUT OUT
(TEMPERATURE SENSOR)
PCB - PRINTED CIRCUIT BOARD
).
CHECK FUSE/CIRCUIT BREAKER - RESET
BREAKER/REPLACE FUSE IF NEEDED
NO
UNPLUG & DISASSEMBLE
YES
REPLACE
A
MODULARITY-OTR-FRIGIDAIRE
KEY PANEL
IS INTERNAL
MWO 15A/20A MODEL NO. : PLMV168KC4, GLMV168KB4,
C FUSE OK? YES
GLMV168KQ4, GLMV168KS4,
FMV145
REPLACE NO
A
HVC
INSTALL SERVICE
BREAKER ACROSS
NO FUSE HOLDER
HVC IS
MISWIRED
PLUG IN UNIT
REPAIR
YES
A
IS DISPLAY
D
LIT?
REPAIR
NO
A
YES
SERVICE BREAKER
ANY SHORTED
TRIPPED BEFORE
OR PINCHED
PROGRAMMING
WIRING?
YES FOR COOK?
NO
NO
B
HAVE
VOLTAGE AT
REPLACE HVT YES
LVT ON PCB?
C
NO
REPLACE CHECK
TCO(s) TCO(s)
OPEN
C CLOSED
CHECK/
REPAIR
REPAIR A
TCO
WIRING
70 - 150 REPLACE
HVT IS OK
OHMS MAGNETRON
OTHER C
A
NO
OK?
YES
RETEST & REASSEMBLE -
END
THIS IS A
REPLACE PCB
LEGEND -
FIND
REPLACE HVT
THESE
ON MAIN
1. SET CLOCK (IF NEEDED)
CHART
2. PLACE CUP OF WATER AND
NEON LIGHT TESTER IN UNIT
3. PROGRAM UNIT TO COOK
MODULARITY-OTR-FRIGIDAIRE
MODEL NO. : PLMV168KC4, GLMV168KB4,
GLMV168KQ4, GLMV168KS4,
FMV145
Printed in Malaysia
DE99-00140B