Owners Manual
Page 3
...cloth. Arcing is important to keep the area clean where the door seals against the microwave. Do not use in food you see arcing, press the CLEAR/OFF button and correct the problem. Pieces can burn off the pad and touch electrical parts involving risk of the oven....when cooking by qualified service personnel. SAVE THESE INSTRUCTIONS ■ Do not immerse power cord or plug in the microwave. Safety Instructions Operating Instructions Care and Cleaning ge.com IMPORTANT SAFETY INSTRUCTIONS. ■ When using the Fast Bake mode. ARCING If you are able to remove ...
...cloth. Arcing is important to keep the area clean where the door seals against the microwave. Do not use in food you see arcing, press the CLEAR/OFF button and correct the problem. Pieces can burn off the pad and touch electrical parts involving risk of the oven....when cooking by qualified service personnel. SAVE THESE INSTRUCTIONS ■ Do not immerse power cord or plug in the microwave. Safety Instructions Operating Instructions Care and Cleaning ge.com IMPORTANT SAFETY INSTRUCTIONS. ■ When using the Fast Bake mode. ARCING If you are able to remove ...
Owners Manual
Page 30
...circuit breaker tripped. Troubleshooting Tips Save time and money! What To Do • Replace fuse or reset circuit breaker. • Unplug the microwave oven, then plug it . START/PAUSE button not pressed after pressing TIME COOK. Another selection entered already in oven and CLEAR/OFF button...close securely. You have entered a food type. Power surge. Care and Cleaning Operating Instructions Safety Instructions Before you call for service. Problem Oven will not start Control panel lighted, yet oven will not start CONTROL LOCKED appears on display OVEN TOO HOT FOR SENSOR COOKING--USING...
...circuit breaker tripped. Troubleshooting Tips Save time and money! What To Do • Replace fuse or reset circuit breaker. • Unplug the microwave oven, then plug it . START/PAUSE button not pressed after pressing TIME COOK. Another selection entered already in oven and CLEAR/OFF button...close securely. You have entered a food type. Power surge. Care and Cleaning Operating Instructions Safety Instructions Before you call for service. Problem Oven will not start Control panel lighted, yet oven will not start CONTROL LOCKED appears on display OVEN TOO HOT FOR SENSOR COOKING--USING...
Owners Manual
Page 31
...and off to heat for more time. Troubleshooting Tips Consumer Support 31 Oven temperature fluctuates during cooking The cooking element cycles on to protect the microwave if it senses too much faster than on the display. •Use Time Cook to maintain the oven temperature at the desired setting. •...; This is normal. Steam was opened before steam could be detected. Safety Instructions Operating Instructions Care and Cleaning ge.com Problem Food browns on top much heat rising from the cooktop below. •This is normal.
...and off to heat for more time. Troubleshooting Tips Consumer Support 31 Oven temperature fluctuates during cooking The cooking element cycles on to protect the microwave if it senses too much faster than on the display. •Use Time Cook to maintain the oven temperature at the desired setting. •...; This is normal. Steam was opened before steam could be detected. Safety Instructions Operating Instructions Care and Cleaning ge.com Problem Food browns on top much heat rising from the cooktop below. •This is normal.
Owners Manual
Page 32
... Similar to the interference caused by other than high. ■ The vent fan operating while the microwave is operating. The vent fan will not go off nor can it does not indicate a problem with a paper towel or soft cloth. ■ Moisture between the oven door panels when cooking ...certain foods. Plug the microwave into a different electrical circuit, move the radio or TV as possible or check ...
... Similar to the interference caused by other than high. ■ The vent fan operating while the microwave is operating. The vent fan will not go off nor can it does not indicate a problem with a paper towel or soft cloth. ■ Moisture between the oven door panels when cooking ...certain foods. Plug the microwave into a different electrical circuit, move the radio or TV as possible or check ...
Service Manual
Page 30
...sec 18 sec 20 sec 22 sec 18 sec 16 sec 14 sec 12 sec 10 sec 8 sec 6 sec 4 sec 2 sec 0 Convection OFF Cooking Start NOTES: • A MICROWAVE ENERGY TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON. • MAKE SURE THE WIRE LEADS ARE IN THE...(ohm meter scale: Rx1) 2. PROBLEMS Fuse blows immediately after the door is closed and START key is blown by an improper switch operation, replace the all Interlock switches, PCB Ass'y,Fuse with new ones, make sure that they are correctly connected. • Check for microwave energy leakage according to INTERLOCK ADJUSTMENT...
...sec 18 sec 20 sec 22 sec 18 sec 16 sec 14 sec 12 sec 10 sec 8 sec 6 sec 4 sec 2 sec 0 Convection OFF Cooking Start NOTES: • A MICROWAVE ENERGY TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON. • MAKE SURE THE WIRE LEADS ARE IN THE...(ohm meter scale: Rx1) 2. PROBLEMS Fuse blows immediately after the door is closed and START key is blown by an improper switch operation, replace the all Interlock switches, PCB Ass'y,Fuse with new ones, make sure that they are correctly connected. • Check for microwave energy leakage according to INTERLOCK ADJUSTMENT...
Service Manual
Page 31
NO YES Replace the circuit board Defective RELAY1 Replace RELAY1 - YES NO GOOD Replace the circuit board 7-20 NO YES GOOD Remove the mate connector of I/O CON from the circuit board. (2) CHECKOUT PROCEDURES FOR RELAY. - Does the unit still operate? PROBLEM (A) FAN motor and oven lamp turn on without touching START key when the door is touched. PROBLEM (B) FAN motor and oven lamp turn on When the door is closed and START key is closed.
NO YES Replace the circuit board Defective RELAY1 Replace RELAY1 - YES NO GOOD Replace the circuit board 7-20 NO YES GOOD Remove the mate connector of I/O CON from the circuit board. (2) CHECKOUT PROCEDURES FOR RELAY. - Does the unit still operate? PROBLEM (A) FAN motor and oven lamp turn on without touching START key when the door is touched. PROBLEM (B) FAN motor and oven lamp turn on When the door is closed and START key is closed.
Service Manual
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Section 7-21 Repair or Replace NOTE: A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON. (4) CHECKOUT PROCEDURES FOR CONVECTION - Convection Cook • Remove neon light • Program bake cook • 225°F (use dial) • Press start • Display "PREHEAT OFFSET ON" • Ready beep ... "OFF" (2 min) YES NO Control system normal •Verify control xfmr & • Oven circuit • All normal except Not • MW power normal High volt. PROBLEM (A) Convection or Combination does not operate.
Section 7-21 Repair or Replace NOTE: A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON. (4) CHECKOUT PROCEDURES FOR CONVECTION - Convection Cook • Remove neon light • Program bake cook • 225°F (use dial) • Press start • Display "PREHEAT OFFSET ON" • Ready beep ... "OFF" (2 min) YES NO Control system normal •Verify control xfmr & • Oven circuit • All normal except Not • MW power normal High volt. PROBLEM (A) Convection or Combination does not operate.
Service Manual
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...light • Press start • Display "PREHEAT OFFSET ON" • Ready beep • Cycle 225°F YES • Press Convection Bake • Actual oven temperature will be displayed. YES NO Control system normal Replace thermistor YES NO Control system normal Replace smart board ...°F (use dial) • Press start • Press Fast Bake • Actual oven temperature will be displayed. PROBLEM (B) Actual oven temperature is not displayed. YES NO Control system normal Replace thermistor YES NO Control system normal Replace smart board 7-22 -
...light • Press start • Display "PREHEAT OFFSET ON" • Ready beep • Cycle 225°F YES • Press Convection Bake • Actual oven temperature will be displayed. YES NO Control system normal Replace thermistor YES NO Control system normal Replace smart board ...°F (use dial) • Press start • Press Fast Bake • Actual oven temperature will be displayed. PROBLEM (B) Actual oven temperature is not displayed. YES NO Control system normal Replace thermistor YES NO Control system normal Replace smart board 7-22 -
Service Manual
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Microwave Cook • Program time cook 30 min Press start • Display "PREHEAT OFFSET ON" • Ready beep • Cycle 225°F • Open the door. ... YES NO Control system normal Replace smart board 7-23 - YES NO Control system normal Replace Damper motor YES NO Control system normal Replace smart board Convection Cook • Remove neon light • Program bake cook • 225°F (use dial) • Press start • After a few seconds open...
Microwave Cook • Program time cook 30 min Press start • Display "PREHEAT OFFSET ON" • Ready beep • Cycle 225°F • Open the door. ... YES NO Control system normal Replace smart board 7-23 - YES NO Control system normal Replace Damper motor YES NO Control system normal Replace smart board Convection Cook • Remove neon light • Program bake cook • 225°F (use dial) • Press start • After a few seconds open...
Service Manual
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... Normal resistance Contact ok Poor contact Normal touch key board Replace circuit board Normal circuit board Correct seating Normal contact Runs Runs Runs Runs Runs PROBLEM - POWER SUPPLY 2. 7-24 C. A: PLEASE ENTER TIME OF DAY does not appear in display window when power supply cord is plugged into wall outlet. 1 Check: 1. FUSE...
... Normal resistance Contact ok Poor contact Normal touch key board Replace circuit board Normal circuit board Correct seating Normal contact Runs Runs Runs Runs Runs PROBLEM - POWER SUPPLY 2. 7-24 C. A: PLEASE ENTER TIME OF DAY does not appear in display window when power supply cord is plugged into wall outlet. 1 Check: 1. FUSE...
Service Manual
Page 36
... not start countdown when START key is touched. No operation Check contact of H.V.capacitor (see page 7-16) Resistance incorrect 33 Normal resistance: Infinite Replace H.V.C. 7-25 PROBLEM - AIR VENTS No continuity Normal operation Check operation of connector CN5 between Pin 1(GN) and pin 3(PK) when the door is produced in oven load...
... not start countdown when START key is touched. No operation Check contact of H.V.capacitor (see page 7-16) Resistance incorrect 33 Normal resistance: Infinite Replace H.V.C. 7-25 PROBLEM - AIR VENTS No continuity Normal operation Check operation of connector CN5 between Pin 1(GN) and pin 3(PK) when the door is produced in oven load...
Service Manual
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... Replace H.V.C. Runs Runs Runs Normal Replace Normal Runs Magnetron Magnetron Check the continuity of H.V.Transformer (see page 7-15) Resistance incorrect Normal resistance Replace H.V.T. Normal H.V.T. Normal H.V.D. PROBLEM - Normal H.V.C. THERMOSTAT Check the contact of relay 2,11(see page 7-18) 2 NO continuity Contact OK Replace circuit board Normal circuit board Check contact of connector...
... Replace H.V.C. Runs Runs Runs Normal Replace Normal Runs Magnetron Magnetron Check the continuity of H.V.Transformer (see page 7-15) Resistance incorrect Normal resistance Replace H.V.T. Normal H.V.T. Normal H.V.D. PROBLEM - Normal H.V.C. THERMOSTAT Check the contact of relay 2,11(see page 7-18) 2 NO continuity Contact OK Replace circuit board Normal circuit board Check contact of connector...
Service Manual
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Runs PROBLEM - F: No buzzing when touching the key, between stages or at end of cooking 1 Check normal Replace Normal Runs operation circuit board circuit board circuit board 7-27
Runs PROBLEM - F: No buzzing when touching the key, between stages or at end of cooking 1 Check normal Replace Normal Runs operation circuit board circuit board circuit board 7-27
Service Manual
Page 39
... the contact of hood thermostat NO contact Contact OK Replace hood thermostat NO runs Replace Normal Runs ventilation ventilation motor ASS Y motor ASS Y Runs Runs PROBLEM - G: Ventilation fan does not operate when FAN HIGH/ MEDIUM/ LOW key is touched. 1 Check: 1.
... the contact of hood thermostat NO contact Contact OK Replace hood thermostat NO runs Replace Normal Runs ventilation ventilation motor ASS Y motor ASS Y Runs Runs PROBLEM - G: Ventilation fan does not operate when FAN HIGH/ MEDIUM/ LOW key is touched. 1 Check: 1.