> MMV5165BAB hood vent fan runs continuously
You probably have either a shorted base thermostat on the base of the chassis of the oven or a shorted fan relay on the control circuit board.
There
should be a "mini-manual" (tech sheet) hidden inside the unit
behind the
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting, testing, and locating
components.
At
our Web site, we have a video
available showing how to remove a typical
over the range control panel assembly in under 5 minutes.
You can find
helpful exploded view diagrams and order parts by entering your full
model number from the tag on the oven here.
We have
the service / repair manual for this model and have uploaded
it to our
site here for free download to help you.
The base thermostat (which I believe has thinner pink and yellow wires attached, but not thicker black wires) should read normally open. If it shows continuity (virtually zero ohms or shorted) then it is bad.
Otherwise, I would say you have a shorted fan relay on the control circuit board.
We regularly repair such control
units for
customers nationwide by mail for $39.95 postpaid in about a
week or so with a one-year guarantee.
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
[email protected]
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide
This is the most intelligent response to this issue that is on the web. A solution to try (50% chance, but it worked in my case) is to cut the white wire from the main control board that feeds the low speed fan circuit. If it's the low speed relay that's blown, the fan will now be High/Off but won't run continuously on Low. Make sure you know what you're doing, tape off the wire ends, etc. If this fails, at least you'll know it's the thermostat.
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I have the same problem BUT it means that the microwave is overheated.. once it has had time to cool down a bit hit the VENT button 3 times (HIGH, LOW and OFF) The OFF option doesn't show till the microwave is ready to to turn off the vent. Hope this helps.
I have the same problem with my Maytag MMV5165BA that came new with our house almost 2 years ago. Everything else seems to function normally, just the fan wont shut off.
SOURCE: exhaust fan is running constantly, without even
It could be that the fan button is sticking or a contact has welded itself closed therefore its getting power all the time.
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Brand: Maytag; Model NO. MMV5165BAB
stove lights work, microwave will heat food. exhaust fan runs continuously. I unplug it when not in use.
Everything else works.
Have the stove top lights failed or been replaced lately? Or have you had any other problems recently? Please reply back with your brand and full model number from the tag in / on the unit so we can help you with an estimate.
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