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Microwave vent fan boost goes on by itself

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The vent fan boost has been turning itself on randomly. I.E. today I cooked pasta on stovetop & an hour

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  #1 (permalink)  
Old 05-13-2010, 06:01 PM
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Default Microwave vent fan boost goes on by itself
Model Number: JVM1850SH06   Brand: GE   Age: 5 - 10 years   

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The vent fan boost has been turning itself on randomly. I.E. today I cooked pasta on stovetop & an hour later, the vent fan boost was activated on the microwave above the stove. This has happened several times in past few days - the first time I got an error code "F3" but that hasn't been displayed again. Any suggestions?


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  #2 (permalink)  
Old 05-14-2010, 07:18 AM
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does your micro have a thermal hood cut out
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Old 05-14-2010, 09:12 AM
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We have an opening to the roof - is that a thermal hood cut out?
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Old 05-14-2010, 11:02 AM
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The Thermal Hood Cut Is A Safty Switch That Is Installed On Your Micro It Suppose To Turn On By Itself If The Bottom Of Your Micro Becomes Too Hot (ps239318 Tco Hood (thermostat) Google This To See What I Am Talking About
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Old 05-14-2010, 12:50 PM
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there is normally a thermal switch to activate the exaust fan this is normal operation if unit is warm
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