Question about In Microwave Ovens
If the fan stops working while the oven is in cooking mode, that will allow the Magnetron to overheat, which can damage it so that the only remedy is to replace it. However, the Magnetron does have a heat sensor on it which may operate to stop the power to it in time to save it from self-destruction.
You will need to get someone who knows electrical circuitry to check your Microwave oven over to find out exactly what failed in the first place before any estimate can be made as to cost to repair it.
Whatever you do, do not attempt repairs yourself !!!!!
The Votlages on a Magnetron are LETHAL and if you make a mistake or fail to observe the very necessary work safety procedures which MUST BE FOLLOWED ON SUCH A PIECE OF EQUIPMENT...........you can guess the likely consequences.
DO NOT ATTEMPT SELF REPAIR OF A MICROWAVE OVEN....IT IS NOT WORTH RISKING YOUR HEALTH AND SAFETY!
Posted on Apr 03, 2015
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Posted on Jan 02, 2017
In some Whirlpool models, there are more than one fuse, and two or more thermal devices which can interrupt power to the oven.
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.
If you don't find yours, or if you want to look at it without disassembling the oven, you can download it here.
You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.
Please write back with more details if you need further help.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Mar 02, 2009
1) How is the cavity damaged? Is it just peeling paint, or is it rust? If it's rust then the microwave could be dangerous.
2) The antenna cap usually has a small hole in the centre, but if there are any other holes in it the magnetron itself could be damaged, and holes caused by the magnetrin arcing.
Posted on Mar 25, 2009
If you have the experience with discharging a capacitor and you have a (VOM) Volt Olm Meter. Unplug microwave, discharge capacitor, and check the resistance of the two thermal cut-off discs by removing the lead and set VOM to RX1. If you don't get a reading of zero, replace the discs. For part go to www.partselect.com and enter your model number. If you found any of these suggestions helpful, please rate my solution. D. Lange
Posted on May 01, 2009
SOURCE: user manuel #kor-861h
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Posted on Aug 15, 2010
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