Microwave Oven Care; General Cleaning; Troubleshooting - Whirlpool MT4078 Use And Care Manual

IMPORTANT: Before cleaning, make sure all controls are off and the microwave oven is cool. Always follow label instructions on
cleaning products.
Soap, water and a soft cloth or sponge are suggested unless otherwise noted.
MICROWAVE OVEN CAVITY
To avoid damage to the microwave oven cavity, do not use soap-
filled scouring pads, abrasive cleaners, steel-wool pads, gritty
washcloths or some recycled paper towels.
The area where the microwave oven door and frame touch when
closed should be kept clean.
Average soil
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Mild, nonabrasive soaps and detergents:
Rinse with clean water and dry with soft, lint-free cloth.
Heavy soil
■ Mild, nonabrasive soaps and detergents:
Heat 1 cup (250 mL) of water for 2 to 5 minutes in microwave
oven. Steam will soften soil. Rinse with clean water and dry
with soft, lint-free cloth.
Odors
■ Lemon juice or vinegar:
Heat 1 cup (250 mL) of water with 1 tbs (15 mL) of either
lemon juice or vinegar for 2 to 5 minutes in microwave oven.
Microwave Inlet Cover
To avoid arcing and microwave oven damage, the microwave
inlet cover (see "Parts and Features") should be kept clean.
■ Wipe with wet cloth.
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.
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 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.
■ Is the electronic microwave oven control set correctly?
See "Microwave Oven Control" section.
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MICROWAVE OVEN CARE

General Cleaning

The area where the microwave oven door and frame touch when
closed should be kept clean.
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Replace turntable immediately after cleaning. Do not operate the
microwave oven without the turntable in place.
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TROUBLESHOOTING

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MICROWAVE OVEN DOOR AND EXTERIOR
Mild, nonabrasive soaps and detergents:
Rinse with clean water and dry with soft, lint-free cloth.
Glass cleaner and paper towels or nonabrasive plastic
scrubbing pad:
Apply glass cleaner to towel, not directly to surface.
CONTROL PANEL
Sponge or soft cloth and water:
Dampen sponge with water and wipe panel. Dry with soft
cloth.
To avoid damage to the control panel, do not use chemical or
abrasive cleansers.
TURNTABLE
Mild cleanser and scouring pad
Dishwasher
On some models, is the Control Lock set?
See "Control Lock" section.
Microwave oven makes humming noise
This is normal and occurs when the power supply in the
magnetron cycles on.
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. See "Turntable" section.
Is the turntable support operating properly?
Remove turntable. 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.