Question about Microwave Ovens
F9 means door latch error. Either the door lock circuit is defective or the Electronic Range Control is faulty. Sometimes the problem is only temporary and can be fixed. Try the tricks below. If they do not work either door latch or control module must be replaced.
1) Disconnect power by turning off the circuit breaker and wait five minutes. If the oven is hot wait one or two hours to allow cooling down.
2) disconnect power and connect back holding door Clear/Stop at the same time.
3) Press the *clean* and enter one minute time cycle.
4) Start a complete self cleaning cycle and press clear stop immediately after starting.
5) Start a complete self cleaning cycle and allow completion.
Some of the operations may not be possible because of the error mode.
If the tricks do not work, then the door must be forced to open. This is done either accessing electronic control and jumping the door latch, or if it still doesn't open using a cloth hanger. There is risk to damage more the oven, and such operations are better done by a technician
Posted on May 25, 2011
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Posted on Jan 02, 2017
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This means a
loose/broken wire on the oven temp sensor or the oven temp. sensor itself is
bad and should be replaced. To solve this issue test the oven temp. sensor, it
should read between 1080-1120 ohms, if the rating is more then that and the
door appears to be closing fine then it is the control board that is bad and
should be replaced. Hope this helps...please post back for further assistance.
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