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Microwave - 13 years old -Model KHHS179L will not work,

Customer Question
Microwave - 13 years...

Microwave - 13 years old -Model KHHS179L will not work, display says Service needed error F7

Contractor's Assistant: What's the microwave's make and model? And can you guesstimate how old it is?

13 years Model KHHS179L -Kitchen Aid says error F7

Contractor's Assistant: Do you plan on doing the work yourself?

No- issue is can it be fixed easily, if not I will replace

Contractor's Assistant: Anything else we should know to help you best?

What type of error is F7

Submitted: 8 months ago.Category: Appliance
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Answered in 5 minutes by:
11/17/2017
Appliance Technician: Tyler Z., Appliance Doc replied 8 months ago
Tyler Z.
Tyler Z., Appliance Doc
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Satisfied Customers: 88,379
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Appliance Technician: Tyler Z., Appliance Doc replied 8 months ago

So F7 is a terrible error to get because there is really no way to test for certain which part is causing the problem. You could have a faulty magnetron itself, a faulty inverter board, or one of your door switches can just not be activating correctly. You can’t test the magnetron or the inverter board, so the best thing to do is check the door switches. Unplug the unit and remove the control panel. This will give you access to the door switches to the left of the control panel opening. There should be 3 switches which you can remove and make sure they don’t look burnt. Push on the little actuator buttons and see if the switches still click. If so then reinstall the switches and shut the door to make sure the door is activating all the switches when the door shuts. If so, then it’s time to guess which part you want to replace–either the magnetron or the inverter board. The manufacturer will tell you to replace the inverter board first, but it’s really a toss up.

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Appliance Technician: Tyler Z., Appliance Doc replied 8 months ago

Hello again. I'm just following up because I haven't heard back from you and I see this question is still open and unrated. Is there anything else I can help you with?

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