Kitchenaid microwave troubleshooting

The likely causes of breakdowns are indicated in the table below. Find your case and read the solution. Modern models display the reason for the failure.

Kitchenaid KMHC319ESS, KHMC1857WSS microwave troubleshooting

If you experienceRecommended Solutions
Microwave oven will not operateCheck the following:
■ Household fuse or circuit breaker - If a household fuse has blown or a circuit breaker has tripped, replace the fuse or reset the circuit breaker. If the problem continues, call an electrician.
■ Magnetron - Try to heat 1 cup (250 mL) of cold water for 2 minutes at 100% cooking power. If water does not heat, try the steps in the bullets below. If microwave oven still does not operate, call for service.
■ Door - Firmly close door. On some models, if a packaging spacer is attached to inside of the door, remove it, then firmly close door.
If a message about the door appears in the display, the door has been closed for 5 minutes or more without the microwave oven being started. This occurs to avoid unintended starting of the microwave oven. Open and close the door, then start the cycle.
■ Control - Make sure control is set properly. Make sure Control Lock is off. Make sure Demo Mode (on some models) is off.
Arcing in the microwave ovenCheck the following:
■ Soil buildup - Soil buildup on cavity walls, microwave inlet cover, cooking rack supports, and area where the door touches the frame can cause arcing.
Turntable alternates rotation directions■ This is normal and depends on motor rotation at the beginning of the cycle.
Display shows messages■ “Enter Clock” with flashing digits means there has been a power failure. Reset the clock.
■ A letter followed by a number is an error indicator. Call for assistance.
Odor and smoke coming from microwave oven during convection cooking■ This is normal for the first few convection cycles. The odor will dissipate with repeated use.
Quartz bulb does not appear to be on■ This is not unusual.
■ Is the element still working properly? Place 2 slices of bread on the tall grill rack, place the rack on the turntable and close the door. Program the microwave oven using manual grill - without microwaves - for 4 minutes. The bread should toast dark brown. If it does not toast, call for service.
Fan running during cooktop usage■ This is normal. The microwave oven’s cooling fan, which is separate from the vent fan, automatically comes on during microwave oven operation to cool the microwave oven. It may also automatically come on and cycle on and off to cool the microwave oven’s controls while the cooktop below is being used.
Radio, TV or cordless phone interferenceCheck the following:
■ Proximity - Move the receiver away from the microwave oven, or adjust the radio or TV antenna.
■ Soil - Make sure the microwave oven door and sealing surfaces are clean.
■ Frequency - Some 2.4 GHz-based cordless phones and home wireless networks may experience static or noise while microwave oven is on. Use a corded phone, a different frequency cordless phone or avoid using these items during microwave oven operation.

Kitchenaid KCMS1655BSS microwave troubleshooting

PROBLEMCAUSESOLUTION
Nothing will operateHas a household fuse blown, or has a circuit breaker tripped?Replace the fuse or reset the circuit breaker. If the problem continues, call an electrician
Microwave oven will not operateIs the magnetron working properly?Try to heat 1 cup (250 mL) of cold water for 2 minutes at 100% cooking power. If water does not heat, try the steps in the bullets below. If microwave oven still does not operate, call for service.
Is the door completely closed?Firmly close door
Is a packaging spacer (on some models) attached to the inside of the door?Remove packaging spacer, then firmly close door
Does “door” appear in the display?Open and close the microwave oven door, and then touch START.
Microwave oven makes humming noiseThis is normal and occurs when the power supply in the magnetron cycles on
Microwave oven door looks wavyThis is normal and will not affect performance
Turntable will not operateIs the turntable properly in place?Make sure turntable is correct side up and is sitting securely on the turntable support.
Is the turntable support operating properly?Remove turntable. Remove and clean turntable hub, support and rollers. Replace hub, support and turntable. Place 1 cup (250 mL) of water on the turntable, then restart microwave oven. If it still is not working, call for service.
Turntable alternates rotation directionsThis is normal and depends on motor rotation at beginning of cycle
Display shows messagesIs the display showing “0:00”?There has been a power failure or the Clock time has been turned off.
Are large amounts of food being heated?Larger amounts of food need longer cooking times
Is the incoming voltage less than that specified in “Electrical Requirements?”Have a qualified electrician check the electrical system in the home
Interference with radio, TV, cordless phone, etcIs the microwave oven plugged into the same outlet?Try a different outlet for the electronic device
Is the radio or TV receiver near the microwave oven?Move the receiver away from the microwave oven, or adjust the radio or TV antenna
Are the microwave oven door and sealing surfaces clean?Make sure these areas are clean
Is the cordless phone frequency 2.4 GHz?Some 2.4 GHz-based cordless phones and home wireless networks may experience static or noise while the microwave oven is on. Use a corded phone or a different frequency cordless phone, or avoid using these items during microwave oven operation