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Microwave Ultrawave with Hood fan

I have an Elite Microwave Oven/Hood Fan Ultrawave, Manufactured by LG. My kitchen timer will not work on 20.00 minutes and show the error F4. Also my 5 speed fan will only work on 1 speed. Could both of these need a new oven temperature sensor? Thanks, Marjorie

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You are right. f4 means shorted oven temperature sensor (RTD). Check sensor harness and harness connection between oven sensor and oven control. Replace oven temperature sensor (RTD) if wiring is ok.

Posted on Apr 04, 2008

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