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
Replace the fuse or reset the circuit breaker. If the problem
continues, call an electrician.
Microwave oven will not operate
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, try the steps
below. If microwave oven still does not operate, call for
service. See "Assistance or Service" section.
Is the door completely
Firmly close door.
Is a packaging
spacer (on some models) attached
inside of the door?
Remove packaging spacer, then firmly close door.
Is the electronic
microwave oven control set correctly?
Oven Control" section.
On some models, is the Control
See "Control Lock" section.
Microwave oven makes humming noise
This is normal and occurs when the power supply switches
the magnetron on and off.
Microwave 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
Remove and clean turntable support and
rollers. 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.
This is normal and depends on motor rotation at beginning of
Display shows messages
Is the display showing ":"?
The clock has not been set. See "Display" section to clear
display. See "Clock" section to reset the clock.
Is the display showing
a letter followed
by a number?
See "Display" section to clear. If it reappears, call for service.
or Service" section.
Display shows time countdown, but the microwave oven
is not operating
Is the Timer in use?
See "Timer" section.
Tones are not sounding
Are tones turned off?
See "Tones" section.
Cooking times seem too long
Is the cooking
power set properly?
Cooking Power" section.
Are large amounts
of food being heated?
Larger amounts of food need longer cooking times.
Is the incoming
voltage less than that specified
Have a qualified electrician check the electrical system in the
Interference with radio, T_, cordless phone, etc.
Is 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
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