Frigidaire GLMB186K Manual

MICROWAVE OVEN-TOUCH CONTROL
F. ANY DEFECTIVE OR MISADJUSTED COMPO-
IMPORTANT SAFETY NOTICE
NENTS IN THE INTERLOCK, MONlTOR, DOOR
THIS INFORMATION IS INTENDED FOR USE
SEAL AND MICROWAVE GENERATION AND
BY INDIVIDUALS POSSESSING ADEQUATE
TRANSMISSION SYSTEMS SHALL BE REPAIRED,
BACKGROUNDS OF ELECTRICAL, ELEC-
REPLACED, OR ADJUSTED BY PROCEDURE
TRONIC AND MECHANICAL EXPERIENCE.
DESCRIBED IN THIS MANUAL BEFORE THE OVEN
ANY ATTEMPT TO REPAIR A MAJOR APPLI-
IS RELEASED TO THE OWNER.
ANCE MAY RESULT IN PERSONAL INJURY
G. A MICROWAVE LEAKAGE CHECK TO VERIFY
AND PROPERTY DAMAGE. THE MANUFAC-
COMPLIANCE WITH THE FEDERAL PERFOR-
TURER OR SELLER CANNOT BE RESPONSI-
MANCE STANDARD SHOULD BE PERFORMED ON
BLE FOR THE INTERPRETATION OF THIS
EACH OVEN PRIOR TO RELEASE TO THE
INFORMATION, NOR CAN IT ASSUME ANY
OWNER.
LIABILITY IN CONNECTION WITH ITS USE.
GROUNDING SPECIFICATIONS
Leakage Current 0.5 mA. (Max.)
DISCONNECT POWER BEFORE SERVICING
Ground Path Resistance 0.14Ω (Max.)
IMPORTANT-RECONNECT ALL
GROUNDING DEVICES
INSTALLATION REQUIREMENTS
ALL PARTS OF THIS APPLIANCE CAPABLE OF CON-
ELECTRICAL
DUCTING ELECTRICAL CURRENT ARE GROUNDED.
Power source
IF GROUNDING WIRES, SCREWS, STRAPS, CLIPS,
Line Current
NUTS OR WASHERS USED TO COMPLETE A PATH TO
GROUND ARE REMOVED FOR SERVICE, THEY MUST Over Current Protection
BE RETURNED TO THEIR ORIGINAL POSITION AND Requires 120 volt, 15-20 amp parallel,
PROPERLY FASTENED.
grounded separate circuit.
Working voltage
PRECAUTIONS TO BE
MICROWAVE LEAKAGE TEST
OBSERVED BEFORE AND
1. Plate 275ml. water in 600 ml.
beaker (WB64 x 5010)
DURING SERVICING TO
2. Place beaker in center of oven shelf.
AVOID POSSIBLE EXPO-
3. Set meter to 2450 MHz scale.
4. Turn "ON" for 5 minute test.
SURE TO EXCESSIVE
5. Hold probe perpendicular to surface being tested and
scan surfaces at rate of one inch/sec.
MICROWAVE ENERGY
Test following areas:
- Entire perimeter of door and control panel
A. MICROWAVE EMISSION CHECK SHOULD BE PER-
FORMED PRIOR TO SERVICING IF OVEN OPERA- - Viewing surface of door window
TIVE. - Exhaust vents
B. DO NOT OPERATE OR ALLOW THE OVEN TO BE 6. Maximum leakage 4 MW/CM
OPERATED WITH DOOR OPEN.
7. Record data on surface invoice and microwave leak-
C. IF THE OVEN OPERATES WITH THE DOOR OPEN:
age report.
1 ) INSTRUCT THE USER NOT TO OPERATE THE
OVEN.
2) CONTACT THE MANUFACTURER AND THE CEN-
TER FOR DEVICES AND RADIOLOGICAL HEALTH
IMMEDIATELY.
D. 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 OPERATION
2. PROPER DOOR CLOSING
3. SEAL AND SEALING SURFACES (ARCING,
WEAR, AND OTHER DAMAGE)
4. DAMAGE TO OR LOOSENING OF HINGES AND
NOTE: Maximum allowable leakage is 5 MW/CM
LATCHES
4 MW/CM 2 is used to allow for measurement
5. EVIDENCE OF DROPPING OR ABUSE
and meter accuracy.
E. BEFORE TURNING ON MICROWAVE POWER FOR
Inform the manufacturer of any oven found to have
ANY TEST OR INSPECTION WITHIN THE
emission in excess of 5 MW/CM
MICROWAVE GENERATING COMPARTMENTS,
CHECK THE MAGNETRON, WAVE GUIDE OR TRANS- the unit into compliance at no cost to owner and try to
MISSION LINE, AND CAVITY FOR PROPER ALIGN- determine cause. Instruct owner not to use oven until it
MENT, INTEGRITY, AND CONNECTIONS.
has been brought into compliance.
PUB. NO. 31-20957
• •
TECHNICAL DATA SHEET
STANDARD TEST LOAD
The standard test load is one liter (1000ml.) water with
a starting temperature of 59°F~75°F in a 1000ml. Use
the beaker of WB64 x 0073. (DO NOT USE ANY
OTHER LOAD OR DISH AS RESULTS WILL VARY
FROM STANDARD.)
PERFORMANCE TEST
1. Measure line voltage(loaded). This test is based on
normal voltage variations of 105V to 130V. Low volt-
age will affect power and temperature rise.
2. Place WB64 x 0073 beaker containing exactly one
liter (1000ml. 59°F~75°F) water on glass shelf and
record the starting water temperature with an accu-
rate glass thermometer (Robinar no. 12084).
3. Set at HIGH (Power).
4. Turn oven "ON" and timer for exactly two minutes
and three seconds.
5. At end of time period, record the water temperature.
120VAC. 60Hz The difference between the starting and ending tem-
peratures is the temperature rise.
13.6Amps 1550W
Depending on line voltage the minimum temperature
15-20 Amps
rise should be:
Line Volts Minimum Temperature Rise
108-132 VAC
120V 43°F
TO PREVENT ELECTRICAL SHOCK. USE EXTREME
CAUTION WHEN DIAGNOSING OVEN WITH OUTER
CASE REMOVED AND POWER " ON " . THE HIGH
VOLTAGE SECTION OF THE POWER SUPPLY
INCLUDING FILAMENT LEADS IS 4000 VOLTS
POTENTIAL WITH RESPECT TO GROUND.
HlGH VOLTAGE CAPACITOR
The high voltage capacitor has an internal discharge
resistor to automatically discharge the capacitor when
the oven turns "OFF". Under normal operation, the
capacitor should fully discharge within 30 seconds.
2 .
WARNING !
Always be certain the capacitor is discharged before
servicing. Mechanically discharge by placing an
insulated handle screw driver between the diode
connection of the capacitor and oven chassis ground.
NOTE: Use screw head close to capacitor to insure
ground metal contact.
500
400
300
200
100
2 .
. Make repairs to bring
2
5. Test Circuit Operation.
CAPACITOR AND DIODE REMOVAL
A) Connect temporary jumper across relay contacts,
1. Disconnect power and discharge capacitor.
primary interlock and door sense switches to simu-
2. Disconnect capacitor and magnetron leads.
late shorted switch contacts. Locate convenient
3. Remove screw from capacitor strap.
connections in circuit to be certain COM and N.O.
4. Remove capacitor strap.
terminals are used.
B) Connect ohm meter (Rx1) across the line terminals
INTERLOCKS AND MONITOR of the appliance cord. Continuity must show:
• Door Closed: some Ω
The Primary, Door Sensing & Monitor switches are
• Door Open: 0 Ω
mounted to a plastic latch board: on the right side of the
C) Remove 20 Amp. fuse-circuit must open ( ∞ Ω ).
cavity. The Secondary interlock Relay (RY-2) is mount-
If not check wiring of monitor and interlocks.
ed on the smart board. From top to bottom the switches
6. WARNING! After test remove temporary jumper leads
are as follows;
from interlocks and relay.
• Door Sensing
• Monitor 7. Replacement of any parts or monitor circuit requires
repeating this entire test procedure.
• Primary Interlock
HOW TO TEST PRIMARY INTERLOCK
NOTE:
Perform microwave leakage test when replacing
1 Unplug oven, remove outer case, and discharge
or adjusting interlock switches or latch board.
capacitor.
2. Check continuity of Switch:
• Door Closed: 0 Ω WARNING !
When 20 Amp. fuse is blown due
• Door Open: ∞ Ω
to operation of monitor switch-both primary inter-
locks and the monitor switch must be replaced.
Also replace Relay (RY-2) when continuity
check shows contacts shorted.
HOW TO TEST DOOR SENSING
DOOR
Make continuity check between switch terminals.
SENSING
Normal reading are as follows:
• Door Closed: 0 Ω
• Door Open: ∞ Ω
MOUNTING
SCREWS
HOW TO TEST INTERLOCK SYSTEM
Unplug oven, remove outer case, and discharge
capacitor.
MONITOR
1. Power Relay (RY-2)
INTERLOCK
• Disconnect two leads from smart board relay.
• Check continuity across the terminals.
PRIMARY The contacts should read open.
INTERLOCK
POWER RELAY (RY-2) &
TURNTABLE CONTROL RELAY (RY-3)
REPLACEMENT
MONITOR SWITCH The Power relay and turntable control relay are mounted
on the control smart board and when it becomes faulty,
The Bottom Latch pawl pushes horizontally and actuates
must be replaced as an assembly.
the lever of the monitor interlock opening the switch .
HOW TO ADJUST INTERLOCKS
HOW TO TEST MONITOR
The Latch-Board is adjustable for door fit and switch
1. Unplug oven, remove outer case and discharge
capacitor. operation.
1. Disconnect power, remove outer case, and discharge
2 Check 20 Amp. fuse for continuity and proper size.
capacitor.
Do not use any other fuse or size except 20 Amp.
3. Remove one monitor switch lead to isolate switch. Check 2. Loosen switch housing mounting screw at enlarged
hole in vertical flange.
continuity of switch with door open and door closed.
• Door Closed: ∞Ω
3. Adjust each switch housing for proper switch opera-
• Door Open: 0 Ω
tion, and door fit. Retighten screws.
4. Reconnect switch wiring.
NOTE:
Perform microwave leakage test when replac-
ing or adjusting interlock switches or brackets.
MODELS
GLMB186KS
GLMB186KB
PLMB186KC
P/NO.: 3858W5T019Q
Printed in Korea