Question about Kenmore 30" Microwave Combination 721.85033111

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The vent will turn on randomly and not turn off!

Is the microwave fixable with such a "wiring short" problem?

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Fan is on but does not suck steam off of stove.

Posted on Feb 03, 2016

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Most over the range microwaves have a heat safety system built into them. If for instance you are cooking on the stove top for a long period of time on the burner directly under the micro control panel and the control panel get too hot, a thermostat in the microwave will automatically turn on the vent fan to help keep the control panel cooled off. My guess is that the safety thermostat (usually right behind the bottom of the control panel) may be going bad and needs replaced.

Posted on Apr 04, 2015

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Posted on Jan 02, 2017

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1 Answer

It was suggested that the Microtron may be shorting. Does this mean the wiring going to the microtron or the microtron itself? It it fixable if it is the microtron or junk? thanks


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. Check for Microwave ovens articles
http://electro-medical.blogspot.com/

Feb 09, 2016 | Microwave Ovens

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Microwave vent won't work


may be short circuit at high voltage section replace diode or magnetron

Jan 26, 2014 | Whirlpool MH2175XS Microwave Oven

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Control panel touchpad does not work; push buttons for Vent, etc. are ok and clock is working. Sometimes when I press the Vent button, I get a message saying the charcoal filter needs replacing. I looked...


follow this steps and fix it. God bless you

  1. Controller is confusedA power surge or random non-reproducible action of the universe may have resulted in the controller's program ending up in an infinite loop. Pull the plug for a minute or two to reset it.
  2. Defective Interlock switchesThis can result in the controller thinking the door is open and ignoring you.
  3. CleaningCleaning solutions (spray cleaner) may have gotten inside and shorted out the touchpad or controller. If this happens remove the touchpad, let it air dry for a few days, and then attach it back on the microwave.

Read more: http://www.appliancepartspros.com/repair-help/microwave-repair-help.html#4#ixzz2hVdoScpK
http://www.appliancepartspros.com

Oct 12, 2013 | GE SpaceMaker Microwave Ovens

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It displays SE and nothing works.


SE error means you have a shorted membrane keypad.

With your model number I can detail your options.

Jul 02, 2010 | Samsung SMH7178STD Microwave Oven

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Active Vent opens and closes continuously while unit is idle


I had GE look at the problem today (my microwave is less than a year old and under warranty). He replaced the cam louver and that seems to have fixed the problem. This is a small motor accessible by removing three screws and the active vent door. The whole visit was less than 15 minutes.<!-- from fixya rte -->

May 03, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

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F7 code on Whirlpool Microwave model GH9185XLT - 1


Power to magnetron
interrupted
12. Replace inverter.
13. Replace all parts and panels before operating.
14. Plug in microwave oven or reconnect power.
15. If problem persists, unplug microwave oven or disconnect power.
16. Replace electronic control.
17. Replace all parts and panels before operating.
18. Plug in microwave oven or reconnect power.
19. If problem persists, unplug microwave oven or disconnect power.
20. Check for reversed plug connection on controls or loose wiring.
21. Replace all parts and panels before operating.
22. Plug in microwave oven or reconnect power.

May 23, 2017 | Whirlpool GH9185XL Microwave Oven

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Sharp Microwave Oven Model R-403kk-T


Are you talking about the light inside the microwave? The front vent I think will allow you to get to the bulb. Should be a couple of small scrrews holding the vent cover on, remove them take vent off. Start it up again and see if the light bulb wiring or socket is arcing

Sep 16, 2009 | Frigidaire FMV156EM Microwave Oven

3 Answers

Exhaust fan runs continuously on Maytag microwave. Please help


> 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.

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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
prototech@usa.net
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide

Jul 18, 2009 | Maytag MMV5165 Microwave Oven

1 Answer

Vent and lights do not work on over the range microwave


Check for another fuse. Check all electrical connections for burns. Did you check fuse with a meter or just look at it? Don't trust what it looks like.

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1 Answer

GE JVM1330BW Spacemaker Microwave Oven


REPLACE AND TAKE CARE NEXT TIME / SORRY

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