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Fan keeps running

My microwave's fan keeps running for 2 mins after I had finished cooking. Is this supposed to be this way? I plugged in the unit on the other side and the fan went off for 2 mins also.

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Neither the owner's manual nor the quick start guide for this model addresses that specifically, but most commercial microwaves do work this way to ensure proper cooling.

The manual does state that when you open the door then close it, the light and fan will stay on for an unspecified period of time.

If the word "HOT" appears in the display, the magnetron is overheated and the fan will run until the temperature is brought down.

If the fan fan NEVER shuts off, then there may be a stuck relay or defective sensor.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Nov 08, 2008

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This is to protect the magnetron from being destroyed.

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide

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