Whirlpool YMT4155SP Microwave Oven User Manual


 
13
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.
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 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.
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.