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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 oven. If it still is not working, call for 
service. See “Assistance or Service” section. Do not operate 
the oven without turntable and turntable support working 
properly.

Turntable rotates in both directions

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

Fan running slower than usual

Has the oven been stored in a cold area?
The fan will run slower until the oven warms up to normal 
room temperature.

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.

Radio or TV Interference

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.

ASSISTANCE OR SERVICE

Before calling for assistance or service, please check 
“Troubleshooting.” It may save you the cost of a service call. If 
you still need help, follow the instructions below.

When calling, please know the purchase date and the complete 
model and serial number of your appliance. This information will 
help us to better respond to your request.

If you need replacement parts

If you need to order replacement parts, we recommend that you 
only use FSP

®

 

replacement parts. FSP

®

 replacement parts will fit 

right and work right because they are made with the same 
precision used to build every new WHIRLPOOL

®

 

appliance. 

To locate FSP

®

 replacement parts in your area, call our Customer 

Interaction Center telephone number or your nearest Whirlpool 
designated service center.

In the U.S.A.

Call the Whirlpool Customer Interaction Center 
toll free: 1-800-253-1301.

Our consultants provide assistance with:

Features and specifications on our full line of appliances.

Installation information.

Use and maintenance procedures.

Accessory and repair parts sales.

Specialized customer assistance (Spanish speaking, hearing 
impaired, limited vision, etc.).

Referrals to local dealers, repair parts distributors, and 
service companies. Whirlpool designated service technicians 
are trained to fulfill the product warranty and provide after-
warranty service, anywhere in the United States.

To locate the Whirlpool designated service company in your 
area, you can also look in your telephone directory Yellow 
Pages.

For further assistance

If you need further assistance, you can write to Whirlpool 
Corporation with any questions or concerns at:

Whirlpool Brand Home Appliances
Customer Interaction Center
553 Benson Road
Benton Harbor, MI 49022-2692

Please include a daytime phone number in your correspondence.

Replacement Parts

Turntable
Part No. 8205098

Turntable Support/
Roller Assembly
Part No. 8205099

Turntable Rollers
Part No. 8205100

Summary of Contents for MT4078SP

Page 1: ...EN Use CareGuide For questions about features operation performance parts accessories or service call 1 800 253 1301 or visit our website at www whirlpool com Table of Contents 2 8204861 3828W5A3571 Model MT4078SP ...

Page 2: ...isplay 6 Start Enter 6 Off Cancel 6 Add Minute 7 Clock 7 Tones 7 Child Lock 7 MICROWAVE OVEN USE 7 Food Characteristics 7 Cooking Guidelines 7 Cookware and Dinnerware 8 Aluminum Foil and Metal 8 Cooking Power 8 Cooking 9 Cooking in Stages 9 EZ CHOICE Feature 9 Defrosting 10 MICROWAVE OVEN CARE 10 General Cleaning 10 TROUBLESHOOTING 10 ASSISTANCE OR SERVICE 11 Replacement Parts 11 WARRANTY 12 ...

Page 3: ... for example closed glass jars are able to explode and should not be heated in the microwave oven Use the microwave oven only for its intended use as described in this manual Do not use corrosive chemicals or vapors in the microwave oven This type of oven is specifically designed to heat cook or dry food It is not designed for industrial or laboratory use As with any appliance close supervision is...

Page 4: ... SUDDENLY BOILING OVER WHEN THE CONTAINER IS DISTURBED OR A SPOON OR OTHER UTENSIL IS INSERTED INTO THE LIQUID Do not overheat the liquid Stir the liquid both before and halfway through heating it Do not use straight sided containers with narrow necks After heating allow the container to stand in the microwave oven for a short time before removing the container Use extreme care when inserting a sp...

Page 5: ...rcuit breaker is required A time delay fuse is recommended It is recommended that a separate circuit serving only this appliance be provided WARNING Fire Hazard Do not install the oven next to or over a heat source without a UL approved trim kit Doing so can result in death fire or electrical shock WARNING Electrical Shock Hazard Plug into a grounded 3 prong outlet Failure to follow these instruct...

Page 6: ...y other time a power failure has occurred Reset the clock if needed When the microwave oven is in use the display shows cooking power quantities weights and or prompts When the microwave oven is not in use the display shows the time of day if the Clock is set Start Enter The START ENTER pad begins any function If cooking is interrupted touching START ENTER will resume the preset cycle Off Cancel T...

Page 7: ...maintain appropriate temperatures Paraffin wax will not melt in the oven because it does not absorb microwaves Use oven mitts or pot holders when removing containers from oven Do not overcook potatoes At the end of the recommended cook time potatoes should be slightly firm Let potatoes stand for 5 minutes They will finish cooking while standing Do not cook or reheat whole eggs inside the shell Ste...

Page 8: ...ays use the turntable Do not allow contact with another metal object during cooking Do Not Use Metal cookware and bakeware gold silver pewter non approved meat thermometers skewers twist ties foil liners such as sandwich wrappers staples and objects with gold or silver trim or a metallic glaze should not be used in the oven CookingPower Many recipes for microwave cooking specify which cooking powe...

Page 9: ...t as a guide To Use the EZ CHOICE Feature 1 Touch one of the EZ CHOICE pads 2 The display will show first programmed quantity Touch the pad again to change quantity See chart for available quantities 3 The microwave oven will begin cooking automatically after a few seconds When the cycle ends END will appear in the display and 3 end of cycle tones will sound 4 Touch OFF CANCEL or open the door to ...

Page 10: ...OVEN CAVITY Do not use soap filled scouring pads abrasive cleaners steel wool pads gritty washcloths or some recycled paper towels Damage may occur On stainless steel models rub in direction of grain to avoid damaging The area where the oven door and frame touch when closed should be kept clean Average soil Mild nonabrasive soaps and detergents Rinse with clean water and dry with soft lint free cl...

Page 11: ...ake sure these areas are clean ASSISTANCE OR SERVICE Before calling for assistance or service please check Troubleshooting It may save you the cost of a service call If you still need help follow the instructions below When calling please know the purchase date and the complete model and serial number of your appliance This information will help us to better respond to your request If you need rep...

Page 12: ...BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES Some states do not allow the exclusion or limitation of incidental or consequential damages so this exclusion or limitation may not apply to you This warranty gives you specific legal rights and you may also have other rights which may vary from state to state Outside the 50 United States this warranty does not apply Contact your authorized Whirlpo...

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