20 Most Recent Whirlpool MH6140XK Microwave Oven - Page 2 Questions & Answers

Hi,
That is not that hard to fix and you can easily buy the parts yourselfonline...

Here is a tip that will help you with the online buying...

How to Buy Appliance Parts Online

Here is one site that I recommend http://ping.fm/zJDAM
heatman101

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101 ';';'
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Hi,

Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Basic Microwave Oven Troubleshooting Tips

heatman101

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Complete breakdown of your unit is here.
Parts available through Sears

http://www.searspartsdirect.com/partsdirect/part-model/Whirlpool-Parts/Microwave-Parts/Model-GH7145XFQ1/1198/0123370?pathTaken=&prst=0&shdMod=GH7145XFQ1

It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.

YOUR SAFETY IS PARAMOUNT

This is a job for a professional but if you are safety clued up, here's instruction.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 or moving coil meter on high resistance range for short circuit, (DVM's won't show the fault!), the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Hi,

One thing worth checking is the doors safety switch as sometimes they become misaligned and although the buttons and the display works the oven will not.

Please remember that electrical appliances can be very dangerous to work on and you should really have them repaired by a professional as they can cause serious harm and or death.

Microwaves have hi voltage capacitors that can store electricity for hours, days and weeks so just because they are not plugged in doesn't mean they are safe.

A repair person would remove the ovens case and and locate the door safety switch which will be where the 2 prongs from the door enter the oven body.

They would then realign the switch to make sure it is being engaged when the door closes.

The switch can be bypassed but this is not a good idea as the oven will operate even when the door is open which is a really bad idea.

Hope this helps,

Best regards,

Dave

hello,

In an situation like this the problem can be view from one point view
from the element

what this simply indicate the element of the oven has given a sing of weakness which will need a replacement .

To replace the element you will have to unscrew the screws on the oven then trace the wire down to the element is always in silver color unscrew the screws around the element

you can get a replacement part on line from the below site
t www.appliancehelponline.com
thank you for using fixya.

Head over to the manufacture's website.

www.searspartsdirect.com

They have a SUPPORT section that you enter your full model number in, and you can download the parts list.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

no i will not advise this, take it to a qualified repair center,there is high voltage present on the capacitor and if you dont know how to safely discharge it you can get electrocuted !!!!!!!

When your microwave oven won't cook your food, and, you hear a loud buzzing sound, it’s normally caused by a faulty (a) diode (b) high-voltage capacitor (b) magnetron.
The diode would be the most likely culprit of the three components. It’s also by far the cheapest!

It can be somewhat tricky and dangerous if you are not careful. Unless you are capable of working around high voltage and able to re assemble something with lots of carefully fitted pieces I would let a trained professional do this job.
Eric

It appears like the high voltage capacitor is shorted or the diode connected to the capacitor. You might want to check the monitoring switch as well if the capacitor and diode are good.
Click here for more info on how to work around these high voltage devices.
Let me know if you need further assistance.

Found this posted under Whirlpool instead of Sharp, but I'll be happy to answer it here.

While that one may not be available, we have one that may be close enough to work:

http://www.microwavedisplay.com/r9h66_r9h76_r9h84b_r9h94b_om.pdf

We're happy to help and we appreciate your thoughtful rating of our answer.

Get the door safety interlock switches tested for continuity and alignment, by a qualified service engineer. If a door switch is not switchimg. there will be no power to the magnetron and no heating.

Question edited for clarity and typos. This is the only one available online. Microwaves are so inherently dangerous inside, Service Manuals are strongly restricted from public access. Make sure his medical and life insurance is up to date. http://www.uncleharrywizard.com/nephewclub/wizardrange/whirlpool-kitchen-aid/8178573-km-30-whirlpool.pdf Have a read. The Triac will be hard soldered to the mainboard or power board, so just look for the one with the same number. https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..

1. Clean the door sensors: If your microwave is showing "DOOR" when you press start, it's possible that the door sensors are dirty or obstructed.Try cleaning them with a soft cloth or cotton swab23.
2. Replace the door switches: If cleaning the door sensors doesn't work, it's possible that one or more of the door switches are faulty and need to be replaced. You can follow this video tutorial to replace the door switches yourself3.

If none of these steps work, it's best to contact a professional or the manufacturer's service center for further assistance. I hope this helps!

All about repairing Microwave Ovens. https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..