Frigidaire FMV145 Quick start guide

MICROWAVE OVEN HOODS
WARNING
NEVER TOUCH OR SERVICE THE
HIGH VOLTAGE CIRCUIT WITHOUT
DISCHARGING CAPACITOR BY
SHORTING ACROSS ITS TERMINALS.
TO AVOID POSSIBLE ELECTRICAL
SHOCK.
OVEN THERMAL CUTOUT
(FLAME SENSOR)
The Oven Thermal Cutout is located on the top
side of the Oven Cavity beside Exhaust duct
with a temperature rating of 248°F.(120°C.) The
cutout is tightly held to the top of the oven cavity
by a spring clip.
NOTE : If cutout cannot be removed from clip
oven will have to be removed from
installation and outer case removed.
ANTENNA
The antenna is motor driven and located on the
upper side of the cavity. The oven uses a top
feed wave guide. The antenna blade is located in
the wave guide and the motor is located on the
wave guide.
To Service Antenna Blade
1. Disconnect power and open the door.
2. Remove the clip and turn the antenna cover
left.
3. Remove antenna cover and the antenna will
come with it.
KEY PANEL TEST
If necessary the key panel pads can be verified
by a continuity test. For ease of handling the key
panel should be removed and placed on a flat
surface.
RIBBON
SMART BOARD
SMART BOARD is used to serve as an electrical
interface between the control and the oven.
SMART BOARD is located on the back of the
control panel assembly.
The SMART BOARD contains the power relay,
LVT, vent blower and surface light relays, and
other components to perform the proper
switching cir-cuits. Several disconnect plugs are
also located on the SMART BOARD:
•
CON 1 - 16 Pin Ribbon Connector
•
CON 2 - 07 Pin Vent Blower Connector
•
CON 3 - 06 Pin Primary L.V.T & Main Relay
•
CON 4 - Door Sensing
Many diagnostic circuit tests can be made at the
disconnect plugs. (Refer to diagnosis flow chart
and simplified schematic in mini-manuals.)
VARISTOR REPLACEMENT
1. Clip old varistor wires at Green varistor body
(leaving two short leads).
2. Replacement varistor has push-on terminals
connected.(WB27x5230)
3. Plug new varistor on the cut leads. Check for
tightness.
CONTROL PERFORMANCE TEST
•
Set Clock-Touch clock pad, enter time of day,
AM/PM touch start pad.
•
Alternately touch each function pad and enter
time or temperature, selection for the function
- also change power levels.
•
Touch Clear-Off after each function test to
clear that funtion.
•
Repeat procedure for each function to
exercise each pad.
•
Control and display should respond to each
entry.
•
Display should revert to Time-Of-Day after
each Clear-Off.
Refer results to Diagnosis Flow Chart.
CAPACITOR AND DIODE
The high voltage capacitor and diode can be
serviced through Control Panel after removing
grille.
MAGNETRON, MAGNETRON FAN,
VENT BLOWER AND POWER
TRANSFORMER
Oven must be removed from wall.
REMOVING OVEN FROM WALL
(2 PEOPLE REQUIRED)
Oven is hooked on metal tabs at bottom of wall
mounting plate and fastened to cabinet by (3)
top cabinet bolts.
CAUTION : Oven weights 62 lbs. Requires 2
people for removal.
1. Disconnect Power Cord, Top vented models -
disconnect duct and remove damper assembly.
2. Remove (3) top cabinet bolts.
3. Pull unit forward slowly providing adequate
support to prevent dropping unit during
removal of last top cabinet bolt.
10~16
1~9
10
9
16
316137215
PAD CONN. PAD CONN.
ADD 30SEC 4-11 CLEAR 3-12
BEVERAGE 6-11
VENT FAN 8-12
POWER LEVEL 3-14 TIMER 4-13
DEFROST 4-15
START 3-11
AM/PM 9-13 1 9-16
SURFACE LIGHT 7-12 2 8-16
CLOCK 7-13 3 7-16
TURNTABLE 5-12 4 6-16
REMINDER 5-13 5 5-16
TIMER COOK 5-15 6 4-16
DELAY START 6-13 7 9-15
REHEAT 9-14 8 8-15
POPCORN 5-11
97-15
HELP 4-12 0 6-15
• TECHNICAL DATA SHEET•
TOUCH "OFF" PADS
TURN "OFF"?
KEY PANEL
OR
SMART BOARD
VENT FAN OR LIGHT
"ON" ONLY WHEN PAD
TOUCHED
REPLACE
SMART BOARD
TOUCH FAN & LIGHT PADS
Y
Y
Y
YN
N
N
VENT FAN & LIGHT "ON"
AND STAYS "ON"?
ONLY FAN
OR
LIGHT WORKS
NO FAN
&
NO LIGHT
CHECK SMART BOARD 16PIN PLUG
• VENT FAN AT 8-12
• SURFACE LIGHT AT 7-12
• PLUGS
• WIRING
• LAMPS
• FAN OR
• SMART
BOARD
• SMART BOARD
OR
• KEY PANEL
• XFMR
• PLUGS OR
• SMART
BOARD
REPAIR
CHEK
• 120V SUPPLY
• IF 20A FUSE BLOWN, CHECK
VARISTOR.
• MAGN TCO ALL OK?
NORMAL
DISPLAY LIT
OPEN DOOR
IS OVEN LIGHT "ON" ?
LARGE WATER LOAD
& NEON IN OVEN OPEN LIGHT &
BLOWER "ON"
AND STAYS"ON"?
MW PWR "ON"?
(NEON LIGHT)
REPL
SMART BOARD •
SMART BOARD
OR
KEY PANEL
•CLOSE DOOR
•RUN CONTROL PERFORM-
ANCE TEST (SEE TEST)
•DOES IT PASS?
•
PROGRAM TIME COOK 30 MIN
•DOES OVEN START
WITHOUT TOUCHED "START"?
• ONLY LIGHT
&
FAN ON
•NO MW PWR
LIGHT FAN
&
MW PWR "ON"
CHECK
•LIGHT
• DOOR S/W AND MAIN RELAY
•WIRING
•CHANGE TO PWR 5
•NEON CYCLE?
•VERIFY XFMR VOLTS
OK?
•CANNOT SET CLOCK
•NO OR ONLYSOME PADS WORK
•DISPLAY NOT WHATA ENTERED
•ERRATIC DISPLAY
•NO BEEP
•DISPLAYGOES BLANK, FF, RESET
•CANNOT CLEAR DISPLAY
•XFMR PLUGS
OR
•SMART BOARD
CHECK
•120V SUPPLY
•20A FUSE
•(IF BLOWN CHECK VARISTOR)
•MAGN TCO & OVEN CUTOUT.
•CONTROL XFMR VOLTS
ALL OK?
N
N
N
NN
N
N
N
N
N
N
N
Y
Y
Y
Y
YY
Y
Y
Y
Y
REPAIR
CAUTION
OBSERVE
PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
SENSITIVE
DEVICES
PERFORM KEY PANEL TEST
•SMART BOARD
OR
•KEY PANEL
•WITH OVEN RUNNING
CHECK NEON CYCLE CHECK POWER
CONTROL REPLAY
TURNED ON
NO OVEN LIGHT
&
NO BLOWER
LIGHT & BLOWER ON
ONLY WHEN START
PAD TOUCHED
SMART BOARD OR
HV SECT
CHK WINDINGS
AT PLUG
INTERLOCKS
DOOR SWITCH
CONTROL XFMR
KEY PANEL
OR
SMMART BOARD
WITH START PAD TOUCHED
CHECK LIGHT/BLOWER
5-12 VDC PLUG
•OPEN & CLOSE DOOR
•LIGHT & BLOWER
STILL ON
SMART
BOARD
REPLACE
SMART
BOARD REPLACE
SMART
BOARD
OVEN LIGHT &
BLOWER STILL ON
REPL
XFMR
•CLEAR OFF &
PROGRAM 30 SEC
START & TIME OUT
• DOES IT TURN "OFF"?
•TOUCH START
To Service Antenna Motor
1. Disconnect power and remove grille screws(2).
2. Remove grille and the bracket duct upper
screws(1).
3. Remove the bracket duct upper and disconnect
the antenna motor wire.
4. Remove antenna motor screws(2) and pull the
antenna motor .
To Service Turntable Motor
1. Disconnect power and remove bottom plate
screws(3).
2. Remove bottom plate and disconnect the
turntable motor wire.
3. Remove turntable motor screws(2) and pull
the turntable motor out.
N
FMV145 2/6/01 3:11 PM Page 1

DISCONNECT POWER BEFORE SERVICING
IMPORTANT •RECONNECT ALL
GROUNDING DEVICES
ALL PARTS OF THIS APPLIANCE CAPABLE OF
CONDUCTING ELECTRICAL CURRENT ARE
GROUNDED. IF GROUNDING WIRES, SCREWS,
STRAPS, CLIPS, NUTS OR WASHERS USED TO
COMPLETE A PATH TO GROUND ARE REMOVED
FOR SERVICE, THEY MUST BE RETURNED TO
THEIR ORIGINAL POSITION AND PROPERLY
FASTENED.
GROUNDING SPECIFICATIONS
Leakage Current 0.5 mA. (Max.)
Ground Path Resistance 0.14 (MAX.)
INSTALLATION REQUIREMENTS
ELECTRICAL
Power Source 120 VAC, 60 Hz.
Line Current 13.5 Amps. (1580Watts)
Over Current Protection 15-20 Amps *
* Requires 120 Volt, 15-20 Amp. parallel,
grounded separate circuit.
Working Voltage 105-130 VAC.
MICROWAVE LEAKAGE TEST
1. Place 275 ml. water in 600 ml. beaker
(WB64
X 5010)
2. Place beaker in center of oven shelf.
3. Set meter to 2450 MHz scale.
4. Turn oven "on" for 5 minute test.
5. Hold probe perpendicular to surface being
tested and scan surfaces at rate of one
inch/sec.
Test the following areas:
•
Entire perimeter of door and control panel
•
Viewing surface of door window
•
Exhaust vents
6. Maximum leakage 4 MW/CM2
7. Record data on service invoice and
microwave leakage report.
NOTE : Maximum allowable leakage is 5 MW/
CM2. 4 MW/CM2is used to allow for
measurement and meter accuracy.
Inform the manufacturer of any oven found to
have emission in excess of 5 MW/CM2. Make
repairs to bring the unit into compliance at no
cost to owner and try to determine cause.
Instruct owner not to use oven until it has been
brought into compliance.
HIGH VOLTAGE CAPACITOR
The high voltage capacitor has an internal shunt
resistor to automatically discharge the capacitor
when the oven turns "off". Under normal
operation the capacitor should fully discharge
within 30 seconds.
STANDARD TEST LOAD
Test load will be 1 liter (1000ML) of water with an
initial temperature of 59°~75° in a 1000 ml beaker
(WB64
X 0073 or Robonar 14882).
PERFORMANCE TEST
1. Record initial water temperature.
2. Run at high power for 2:03.
3. Record end water temperature.
The minimum difference between the initial
and ending temperature should be:
30° @ 120 V
INTERLOCKS(DOOR Latch Switches)
Interlocks are designed as follows:
•
Primary -Bottom switch operated by bottom
latch pawl connected to line (L) leg.
HOW TO TEST INTERLOCKS
Disconnect power, open control panel, and dis-
charge capacitor.
Primary
1. Check Continuity of Com and N.O.:
•Door Closed -0Ω
•Door Open - ∞Ω
MONITOR SWITCH
The monitor switch is located between the top
and bottom interlocks. The monitor switch is
operated indirectly by the bottom latch pawl.
HOW TO TEST MONITOR
1. Disconnect power, open control panel, and
discharge capacitor.
2. Disconnect monitor switch leads, and test at
terminals:
•Door Closed -∞Ω
•Door Open - 0Ω
3. Reconnect switch wiring.
4. Test Circuit Operation:
A) Connect temporary jumper across relay
contacts and primary switch to simulate
shorted switch contacts. Locate con-
venient connections in circuit to be certain
COM and N.O. terminals are used.
B) Connect OHM meter (Low Scale) across
the two line terminals of appliance power
cord.
Continuity must show:
•Door Close -Some Ω
•Door Open -0 Ω
C) Remove 20 Amp. Fuse -Circuit must open
(∞Ohms). If not, check wiring of monitor
and interlock circuits.
5.
Warning : After test, remove temporary
jumpers and reconnect monitor switch leads.
FUSE
HOW TO ADJUST INTERLOCKS
The switch housing is adjustable for door fit and
switch operation.
1. Disconnect power, open control panel, and
discharge capacitor.
2. Loosen switch housing mounting screw at en-
larged hole in vertical flange.
3. Adjust each switch housing for proper switch
operation, and door fit. Retighten screws.
4. IMPORTANT - CHECK FOR MICROWAVE
LEAKAGE AFTER ANY ADJUSTMENT.
CAUTION !
When safety interlocks and monitor switches are
repaired or replaced, check microwave leakage
and distance between door and cavity of micro-
wave as described below.
1. Use a piece of paper 0.02 inch thick, 1 inch
wide and 4 inches long (a dollar bill folded in
half twice lengthwise is about this size).
2. Open the door and place the paper between
the door and front frame of the oven cavity.
3.Close the door to capture it between the door
and the cavity front frame.
4. Draw the paper from between the door and
cavity (check at bottom and sides also) if
there is resistance to the removal of the paper
then the distance is correct.
5. Perform microwave leakage check, if leakage
does not exceed 4 MW/CM2it is performing
properly.
AUTOMATIC FAN FEATURE
Exhaust fan turns "ON" (low speed)
automatically during some surface unit heavy
use conditions. (Cannot be turned off manually -
will turn off automatically.) May stay on up to 15
mins. after range and lower oven controls are
turned off.
HOOD THERMOSTAT
Single pole thermostat mounted on R.H. side
duct in control compartment. Contacts close at
approx. 158°F.
BOTTOM THERMOSTAT
Single pole thermostat mounted on base plate.
Contacts open at approx. 248 °F
DOOR ASSEMBLY
The door assembly is serviceable as an
assembly or with parts.
ADJUSTMENT (Alignment with Control Panel)
Remove top grille and bottom cover. Loosen
top and bottom hinge screws to adjust.
Retighten screws.
IMPORTANT SAFETY NOTICE
THIS INFORMATION IS INTENDED FOR USE
BY INDIVIDUALS POSSESSING ADEQUATE
BACKGROUNDS OF ELECTRICAL ELEC-
TRONIC AND MECHANICAL EXPERIENCE.
ANY ATTEMPT TO REPAIR A MAJOR
APPLIANCE MAY RESULT IN PERSONAL
INJURY AND PROPERTY DAMAGE. THE
MANUFACTURER OR SELLER CANNOT BE
RESPONSIBLE FOR THE INTERPRETATION
OF THIS INFORMATION, NOR CAN IT ASSUME
ANY LIABILITY IN CONNECTION WITH ITS
USE.
WARNING!
Always be certain the capacitor is
discharged before servicing. Mechanically
discharge by placing an insulated handle
screwdriver between the diode connection of
the capacitor and oven chassis ground.
NOTE: Use screw head close to capacitor
to insure ground metal contact.
TO PREVENT ELECTRICAL SHOCK, USE EX-
TREME CAUTION WHEN DIAGNOSING OVEN
WITH OUTER CASE REMOVED AND POWER
"ON". THE HIGH VOLTAGE SEC-TION OF THE
POWER SUPPLY, INCLUDING FILAMENT LEADS
IS 4000 VOLTS POTEN-TIAL WITH RESPECT TO
GROUND.
MICROWAVE LEAKAGE TEST
A microwave leakage test must be performed
any time a door is removed, replaced, disas-
sembled, or adjusted for any reason.
THE MAXIMUM LEAKAGE IS
4 MW/ CM2.
WARNING! When 20 Amp. fuse is blown due
to operation of the monitor switch, the monitor
switch must be replaced. Also replace relays
and / or interlock switches when continuity
check shows contacts shorted.
PRECAUTIONS TO BE
OBSERVED BEFORE AND
DURING SERVICING TO
AVOID POSSIBLE
EXPOSURE TO
EXCESSIVE MICROWAVE
ENERGY
A. MICROWAVE EMISSION CHECK
SHOULD BE PERFORMED PRIOR TO
SERVICING IF THE OVEN IS
OPERATIVE.
B. DO NOT OPERATE OR ALLOW THE
OVEN TO BE OPERATED WITH THE
DOOR OPEN.
C. IF THE OVEN OPERATES WITH THE
DOOR OPEN: 1) INSTRUCT THE USER
NOT TO OPERATE THE OVEN AND 2)
CONTACT THE MANUFACTURER AND
THE CENTER FOR DEVICES AND
RADIOLIGICAL HEALTH IMMEDIATELY.
D. MAKE THE FOLLOWING SAFETY
CHECKS ON ALL OVENS TO BE SER-
VICED BEFORE ACTIVATING THE
MAGNETRON OR OTHER MICROWAVE
SOURCE, AND MAKE REPAIRS AS
NECESSARY:
1. INTERLOCK OPERATION
2. PROPER DOOR CLOSING
3.SEAL AND SEALING SURFACES
(ARCING, WEAR, AND OTHER
DAMAGE)
4.DAMAGE TO OR LOOSENING OF
HINGES AND LATCHES
5. EVIDENCE OF DROPPING OR ABUSE
E. BEFORE TURNING ON MICROWAVE
POWER FOR ANY SERVICE TEST OR
INSPECTION WITHIN THE MICROWAVE
GENERATING COMPARTMENTS,
CHECK THE MAGNETRON, WAVE
GUIDE OR TRANSMISSION LINE, AND
CAVITY FOR PROPER ALIGNMENT,
INTEGRITY, AND CONNECTIONS.
F. ANY DEFECTIVE OR MISADJUSTED
COMPONENTS IN THE INTERLOCK,
MONITOR, DOOR SEAL, AND MICRO-
WAVE GENERATION AND TRANSMIS-
SION SYSTEMS SHALL BE REPAIRED,
REPLACED, OR ADJUSTED BY PRO-
CEDURES DESCRIBED IN THIS
MANUAL BEFORE THE OVEN IS
RELEASED TO THE OWNER.
G. A MICROWAVE LEAKAGE CHECK TO
VERIFY COMPLIANCE WITH THE
FEDERAL PERFORMANCE STANDARD
SHOULD BE PERFORMED ON EACH
OVEN PRIOR TO RELEASE TO THE
OWNER.
MICROWAVE OVEN HOODS
316137215
• TECHNICAL DATA SHEET •
SWITCH BODY
LATCH PAWL
DOOR SENSE
SWITCH(TOP)
MONITOR INTERLOCK
SWITCH (MIDDLE)
PRIMARY INTERLOCK
SWITCH (BOTTOM)
LEVER BOTTOM
TOP SW.
BKT. ADJ.
BOTTOM SW.
DOOR SENSE SW.
MONITOR SW.
PRIMARY SW.
BKT. ADJ.
BOTTOM HINGE
HINGE SCREWS
DOOR
TOP HINGE
HINGE SCREWS
DOOR
FMV145 2/6/01 3:11 PM Page 2

Printed in Korea
FMV145 2/6/01 3:11 PM Page 3