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Question posted by suntravel on February 4th, 2017

Microwave Quits Heating After 2 Minutes

When we use the microwave, for popcorn for example, we set the timer for 3 minutes or however long is needed. After about 2 minutes it stops working and can't be used for about 10 minutes. Any ideas.Whirlpool MH1170XSQ

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Answer #1: Posted by Troubleshooter101 on February 5th, 2017 12:24 AM

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Troubleshooter101

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From the description you give most likely the problem is with the control board.

There is a fuse that would cause this problem but it would reset in 15 minutes and start to work. Once the fuse trips it will not work again.

There may be a wire connection that is heating up and separating causing this problem.

Microwaves are not good do-it-yourself projects and a technician will be needed to check and correct this problem.

Microwaves are inherently dangerous to service. Internal capacitors can retain a lethal electrical charge even when the microwave is unplugged.

I recommend calling a service technician to repair this type of problem.

Thanks

Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful. Please feel free to submit further info for your question, if a solution was not provided. I appreciate the opportunity to serve you!
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Related Whirlpool MH1170XSQ Manual Pages

User Instructions - Page 1

... need your appliance. You will need assistance, call us at www.whirlpool....example, closed glass jars - See "GROUNDING INSTRUCTIONS" found in this high-quality product. ® MICROWAVE...heated in the microwave oven. ■ The microwave oven must be killed or seriously injured if you and others are not followed. Always read and obey all instructions before using the microwave oven...

User Instructions - Page 2

... qualified service personnel. for example, near a kitchen sink, in a wet basement, or near water - It is particularly important that there is no damage to stand in the "Microwave Oven Care" section. ■ To reduce the risk of injury to heat, cook, or dry food. Do not overcook food. Do not use the microwave oven near a swimming pool...

User Instructions - Page 3

... fuse or time-delay circuit breaker. ■ A separate circuit serving only this microwave oven. WARNING: Improper use an extension cord. Do not use an adapter. Scroll Speed To Adjust Speed: 1. Then touch the Start control to exit Demo Mode. To Set Timer: 1. Touch the Timer control. 2. Vent Fan High, low and off programming tones. Repeat to follow...

User Instructions - Page 4

... avoid damage to the microwave oven cavity, do not use stainless steel cleaner. ■ Turntable: mild soap and water or dishwasher. ■ Cooking rack and supports (on some models) A sensor in for automatic cooking functions (except Popcorn) by arcing due to enter power level (10-90), then touch the Start control. Microwave Oven Care General Cleaning IMPORTANT...

User Instructions - Page 5

...minutes at the beginning of the microwave oven. Replacment Parts Accessories ■ Turntable ■ Turntable support and rollers ■ Turntable hub ■ Cooking rack (for 5 minutes or more without the microwave oven being used... Control Make sure control is set properly. If the problem continues, call for assistance. www.whirlpool.com Microwave oven will not operate Check the ...

User Instructions - Page 6

... front facing of the microwave oven opening, behind the door. Repairs when your major appliance is used for other damage to ... access to the Internet and you need further assistance, you may contact Whirlpool at : Whirlpool Brand Home Appliances Customer eXperience Center 553...a remote area where service by an authorized Whirlpool servicer is not available. 10. This warranty is void if the factory...

Installation Instructions - Page 1

...Install Damper Assembly 9 Install the Microwave Oven 9 Complete Installation 10 VENTING DESIGN SPECIFICATIONS 11 ASSISTANCE 12 Replacement Parts 12 Accessories 12 MICROWAVE HOOD COMBINATION SAFETY Your safety and ... section for use above electric or gas cooking products up to potential hazards that can happen if the instructions are very important. MICROWAVE HOOD COMBINATION INSTALLATION...

Installation Instructions - Page 2

...9632; If you are using a rectangular to round transition piece, the 3" (7.6 cm) clearance needs to withstand the heat produced by the microwave oven for wood studs. ...Round Transition" illustration in "Venting Design Specifications" section. 2 Set the cardboard template to the side and refer to back of microwave oven) Cardboard template (part of installation. See "Electrical Requirements" ...

Installation Instructions - Page 3

... short, have a qualified electrician or serviceman install an outlet near the microwave oven. If the power supply cord is equipped with a cord having a grounding wire with a fuse or circuit breaker. WARNING: Improper use an extension cord. Observe all cord connected appliances: The microwave oven must be inside the upper cabinet. Grounded 3 prong outlet *30" (76...

Installation Instructions - Page 4

... venting, changes must be used. Blower motor 4 Keep the damper assembly in case the venting method is changed, or the microwave oven is being handled. A B A B A. Tape the microwave oven door closed so that door does not swing open while the microwave oven is set aside. 3. Remove 2 screws attaching blower motor to the work surface, cover the work surface. 1. INSTALLATION...

Installation Instructions - Page 5

...oriented, the 2 screws removed in Step 1 of the microwave oven. Reattach blower motor to back of microwave oven with flat sides facing the back of "Wall Venting Installation ...A B C D A. Screws C. Rotate blower motor so that exhaust ports face the back of microwave oven. Roof Venting Installation Only 1. Repeat Step 3 from "Wall Venting Installation Only." Screws C. NOTE...

Installation Instructions - Page 6

...examples...stud(s) within the cabinet opening, do not install the microwave oven. 1. See illustrations in "Possible Wall Stud Configurations." Cabinet... opening vertical centerline C. Mounting plate center markers 6 Holes for lag screws E. See illustrations in "Possible Wall Stud Configurations." 2. Using...

Installation Instructions - Page 7

...These represent the mounting plate's end holes and bottom edge. 4. Using a straightedge, draw the 2 horizontal, level lines through the marks... If the holes are ideal hole locations. 7. Mark Rear Wall The microwave oven must be installed on at least 1 wall stud, the mounting plate ...cutout area. 13. Set the mounting plate aside. Mark the centerline 3/8" (1 cm) down 4" (10.2 cm) from the ...

Installation Instructions - Page 8

...to the wall on a second wall stud, insert a lag screw into the wall studs and/or drywall using either 1/4-20 x 3" round-head bolts and toggle nuts or 1/4 x 2" lag screws. Start toggle...end holes of the microwave oven. Refer to illustrations in "Possible Wall Stud Configurations" in the top of mounting plate. 2. Spring toggle nut Upper-cabinet template D 10" (25.4 cm) F E 10" G (25.4 cm...

Installation Instructions - Page 9

... corner of the shaded rectangular area "F" on the back of the microwave oven so that damper blade moves freely, and opens fully. 2. Using a keyhole saw, cut out the rectangular area. Handle the microwave oven gently. 1. Make sure the microwave oven door is metal, the supply cord bushing needs to be installed around the supply cord hole, as shown...

Installation Instructions - Page 10

... Care Guide for troubleshooting information. Raised tabs B. Do not use an adapter. Longer or shorter bolts are available at 100% power. WARNING A. Long tab F. NOTE: If microwave oven does not need to damper assembly. Vent B. Plug microwave oven into a grounded 3 prong outlet. With the microwave oven centered, and with sheet metal screw. The blocks must be installed...

Installation Instructions - Page 11

... minimizing the length of the 3" (7.6 cm) F vent and number of the microwave oven and the transition piece. B For optimal venting installation, we recommend: C D ■ using roof or wall caps that the damper can open fully. See the examples in the vent system ■ using caulking compound to seal exterior wall or roof opening around cap...

Installation Instructions - Page 12

... of the microwave oven opening . For best performance, use when installing this microwave oven in a 36" (91.4 cm) or 42" (106.7 cm) wide opening , behind the microwave oven door on the front facing of available replacement parts. See the following examples: 3¹⁄₄" x 10" (8.3 x 25.4 cm) vent system = 73 ft (22.2 m) total A B 6 ft (1.8 m) 2 ft (0.6 m) C A. If you need...

Dimensions - Page 1

.... wall cap = 40 ft. (12.2 m) 8 feet straight = 8 ft. (2.4 m) Length of vent should be used, calculate each vent piece used and a rectangular 3" (7.6 cm) extension vent between the damper assembly and the adapter must be kept to a minimum to the microwave oven hood. See "Electrical Requirements" section. Must be inside the upper cabinet. Instructions packed with...

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