NO POWER I HAVE A KHMS 155LBTO KITCHENAID MICROWAVE HOOD THAT DOES NOT INDICATE POWER EVEN THOUGH IT IS PLUGGED INTO A LIVE RECEPTICALE. WHAT IS THE PROBLEM? HOW CAN I LOCATE THE 20 AMP LINE FUSE ON THIS MODEL TO DETERMINE IF IT IS BLOWN? WE HAVE EXPERIENCED SOME BROWN OUTS WITH THE POWER COMPANY, LATELY. COULD THAT HAVE EFFECTED THE APPLIANCE? TOM [email protected]

Hi asoleyma,
This error code F7 from a Ktchenaid oven means that the function key is stuck on ERC. This can be fixed by having the control board (also called ERC or clock) be replaced.You may contact Sears for the replacement part at 1-800-252-1698; M-F 6:30 AM-10:30 PM - Sat 7:00 AM-9:30 PM - Sun 7:30 AM-9:30 PM - All times Central. Just get your model number ready when you call.
Hope this helps.
Thank you for using FixYa.

Hi,
Normally this would indicate that the diode in the power supply for the Magnetron (microwave radiation emitter) has failed. I would recommend that the unit be serviced by a professional in this area, or disposed of because of the following:

1 The power supply for Magnetron Tube the produces thousands of volts and can produce a lethal shock even though the machine is turned off and unplugged. Really, I'm not kidding.
2 Working on a Microwave Oven can expose you to high levels of Radiation which can immediately
Damage internal organs.

That said, there is another even better reason.
3 Microwave Ovens are now very inexpensive to replace.

Even though I personally know how to fix them, I can't be bothered.

I hope I have been of help
Happy New Year,
Best, Mark

Hi,

I have the same model in my home only mine is black rather than stainless. The problem you are encountering is most likely due to a fuse that has blown internally in the unit. Before having it looked at be sure you have power to the wall outlet that the microwave is plugged into. The outlet is usually in the cabinet above the microwave, simply unplug the microwave and plug a lamp or other appliance to verify it is 'live'. If the outlet is live the repair for the fuse may be a done from the front if you have a bit of patients and basic knowledge of electricity. I would recomment calling a service company to make all repairs on this paticular unit as it can be very tricky. Let me know I can help further.

HI, this is an indication of a failed door switch. When the switch fails, the control cannot recognize the closed door signal. Simply replacing the door latch mechanism will solve this issue.

Replace the door latch assembly, asap.

with most microwave ovens, for safety reasons... they are permanently sealed to prevent microwave leakage burns... i hope this helped you out..

Most home improvement stores and even some Walmarts/Chain grocery stores/Ace Hardware carry replacements. You will need to remove the cover from the microwave oven on most models unless your bulb is inside a protective cover inside the actual oven. Take the bulb with you when you go to make certain of a proper match. Be certain to unplug the oven if you need to remove the cover in any case.

Check the power cable, it might have a brake in it.

You need a new one. Never try to take microwave ovens apart or look behind displays and into to the case.

https://www.fixya.com/support/r29874712-repairing_microwave_ovens

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How can you take the fuse out on this model KHMS 155LSS-4 of kitchenaid

Kitchenaid KHMS 147 HBL-1 unit does not heat. All other functions are working and it worked this morning but as of this evening it will not heat. I was thinking the fuse but would like some advice