Whirlpool YMT4155SP manual Troubleshooting

TROUBLESHOOTING

Try the solutions suggested here first in order to avoid the cost of an unnecessary service call.

Nothing will operate

■Has 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.

Display shows messages

■Is the display showing “:”?

There has been a power failure or the Clock time has been turned off. See “Display” section to clear display. See “Clock” section to reset or turn on Clock.

Oven will not operate

■Is the door completely closed? Firmly close door.

■Is a spacer (on some models) attached to the inside of the door?

Remove spacer, then firmly close door.

■Is the electronic microwave oven control set correctly? See “Microwave Oven Control” section.

■On some models, is the Control Lock set? See “Control Lock” section.

■On some models, is the Demo Mode in use? See “Demo Mode” section.

■Is 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, call for service. See “Assistance or Service” section.

Oven makes humming noise

■This is normal and occurs when the power supply switches the magnetron on and off.

Oven door looks wavy

■This is normal and will not affect performance.

Turntable will not operate

■Is 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 replace turntable support. Replace turntable. Place 1 cup (250 mL) of water on the turntable, then restart microwave oven. If it still is not working, call for service. See “Assistance or Service” section. Do not operate the microwave oven without turntable and turntable support working properly.

Turntable rotates both directions

■This is normal and depends on motor rotation at beginning of cycle.

Display shows time countdown, but the microwave oven is not operating

■Is the Timer in use? See “Timer” section.

■On some models, is the Demo Mode in use? See “Demo Mode” section.

Tones are not sounding

■Are tones turned off? See “Tones” section.

Cooking times seem too long

■Is the cooking power set properly? See “Cooking Power” section.

■Are large amounts of food being heated?

Larger amounts of food need longer cooking times.

■Is the incoming voltage less than specified in “Microwave Oven Safety?”

Have a qualified electrician check the electrical system in the home.

Interference with radio, TV, cordless phone, etc.

■Is the microwave oven plugged into the same outlet? Try a different outlet.

■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 oven operation.

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