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Original post by: rbolneni1 ,

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Hi Adam - I had the same issue and my Microwave is GE Profile. The Overhead Fan was TURNING ON, when I closed the door.  I kept it ON for an hour and NEVER TURNED OFF. After my investigation and following your directions, the TOP Door Micro Switch (NO) was FAULTY (seems got HOT, Melted a BIT, and Went Bad) and verified/confirmed with Multi Meter too. I replaced the BAD Switch with a NEW ONE. PROBLEM FIXED and WORKS NORMAL.

It was just a bit time consuming process and your LOGIC WORKED.   just wanted to share and THANKS A LOT and APPRECIATE your SUGGESTION.

By the way, even though I am a mechanical engineer, unable figure it out why OVERHEAT FAN COMES ON. EXCELLENT INFORMATION, LOGIC, SUGGESTION and THANKS A LOT.

Ravi

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