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Question and Answers

Q:

what does F9 mean on micro wave model 721 636 643 00

A:

Thank you for your question. The F9 error code indicates an inverter failure. This can sometimes by caused by a power surge or glitch through the electrical lines. You can sometimes clear this fault by completely unplugging the microwave for 1 minute. Plug it back in and see if the fault code returns. If it does, then you have an internal component failure that will need to be serviced by a technician. Due to the inherent dangers involved in repairing microwaves it is strongly recommend that a service technician service the microwave. Internal capacitors can retain a lethal electrical charge even though the unit is completely unplugged. A microwave radiation leakage test must be performed on the unit following any internal component repair.

We will give repair instructions on any other appliance that a customer can safely complete.

You can have the microwave repaired at your home by a Sears technician. Here is a link for the website: Sears Home Services .

Thank you for using Manage my life.

Mark T.

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Mark T -
Sears Technician
December 29, 2010