20 Most Recent Roper MHE14XKB Microwave Oven Questions & Answers


PCB transformer faulty

Roper MHE14XKB... | Answered on Dec 04, 2013


your micro has a short could be a couple things get someone to look at it dont cause a fire

Roper MHE14XKB... | Answered on Oct 14, 2013


First of all, thank you very much for choosing FIXYA today for your online technical support needs.


I'm Joe, and I will be more than happy to assist you with your service request.


Here is a direct link to the ONLINE SERVICE MANUAL for that model:


https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/4509651d186ee04885256aa100617fb7/$FILE/8178053.pdf





And here is a link to an exploded view parts diagram of that model:

http://www.appliancefactoryparts.com/content/pdfs/128680-8.pdf




And here is a link to the information sheet on the fuse for that microwave:


http://www.appliancefactoryparts.com/search/part/329968/128680


To view the Manual and other information just use your mouse to click on the links, which are the underlined and blue highlighted section of text just above.


This will open a new web browser page automatically for you and allow you to view the information at the website indicated and the contents of the Manual.



See page 28 (Section 3-8) of the service manual for detailed instructions and illustrations about how to access and replace the fuse on that unit. Please make sure that the unit is unplugged before attempting any repair procedures. These appliances can be very dangerous to work on even after they are unplugged due to the high voltage components inside like the large capacitor. Please do not attempt any disassembly or repairs unless you are very familiar with the electrical saftey precautions necessary.

You may need ADOBE READER installed on your computer to read PDF documents, although many computers already have this utility pre-installed.


You can always download this for free at WWW.ADOBE.COM if necessary. Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there, then follow the onscreen instructions to install the software on your computer.


Please COMMENT back here to this page if you have any details to add, have any questions, have difficulty accessing the links, or just require further general assistance and I will respond as soon as I see it.


If you were satisfied with the service provided, could you please take a moment to leave a 5 STAR rating. Your feedback is very important and I truly appreciate your consideration.


BEFORE leaving a rating OTHER THAN 5 STARS or a negative TESTIMONIAL, please contact me using the ADD A COMMENT feature and I will immediately clear up any concerns or answer any additional questions that you might have until you are completely satisfied with the service provided. The FixYa rating system is a very important component of the Marketplace, and unfortunately once you post a rating or a testimonial to a solution, it cannot be changed at all later on.


Be sure to use the small blue ADD A COMMENT button located just below the text of this solution to leave any additional comments for me regarding this particular issue and I will respond right away.


I truly hope that was helpful to you.


Good luck and take care.


Joe.

Roper MHE14XKB... | Answered on Dec 23, 2011


Check the Main fuse inside the oven.And check the cause why it trip.
if it fused then check the transformer physically for sign of burnt.
I all above things okay.Then you need DMM to check the resistance of magnetron(oven has 5000 v in it even unpluging from main)(please dischage capacitor if you want to live more).
Thanks
Please rate my work

Roper MHE14XKB... | Answered on Sep 19, 2011


Hi and welcome to FixYa, I am Kelly

When everything but the heat works there are 2 common components that fail. The high voltge capacitor or the high voltage diode. In rare cases the magnetron fails because the oscillator in the top of the magnetron sticks. When the oscillator sticks the magnetron makes a LOUD humming sound and you do not get heat. However.... a open diode or shorted capacitor will make the exact same sound briefly before the main in line / internal fuse fails.

The capacitor and diode are items 4 and 9 this link:
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=504310&diagram_id=28243249#d28243249

NOTE: Before doing ANY maintenence you must hold an plastic handle screwdriver back on the handle and ground the capacitor terminals at least 3 times. (Just in case it has not failed.)
Failure to do so will ruin your day and pass along one heck of a shock.

To check the diode you must disconnect one terminal first. The read it with a meter. Reverse the leads and check continuity again. It should read continuity in ONE direction / polarity only. Id should NOT read open both ways or shorted both ways.

To check the capacitor you have to remove all the terminals from ONE side of the capacitor terminals. With the meter on R X 10,000 probe the 2 terminals. You should see a brief jump in resistaqnce and then the meter drifts to infinty. Reverse the leads and do this again. You must get the same jump in resistance and then the meter drifts to infinity. If it does not do this it has failed and must be replaced.

If both the diode and the capacitor pass the checks above the next step is to check the magnetron for continuity across the 2 terminals. It must read continuity. Even if this test passes the oscillator can be stuck and it will not heat. (Again if it is stuck it will make a LOUD humming noise.) It is not repairable.

I suspect you either have a bad diode (most probable cause) or bad capacitor (2nd most probable cause).

Thanks for choosing FixYa,
Kelly

Roper MHE14XKB... | Answered on Jul 03, 2011


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

Microwave Oven Basic Troubleshooting Tips

heatman101

Roper MHE14XKB... | Answered on Apr 13, 2011


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.

Roper MHE14XKB... | Answered on Jan 06, 2011


We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid with a one year guarantee.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan, cooling fan, turntable, and/or inside light operation, too.

Details of our service are at our Web site, along with a video showing how to remove a typical over the range control panel assembly in under 5 minutes.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

microwavesvc_5.jpg

Roper MHE14XKB... | Answered on Dec 03, 2010


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

Microwave Oven Basic Troubleshooting Tips

heatman101

dhhdg

Roper MHE14XKB... | Answered on Sep 30, 2010


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

Microwave Oven Basic Troubleshooting Tips

heatman101

hkgf

Roper MHE14XKB... | Answered on Sep 30, 2010


Chances are your secondary interlock (top door switch) is bad, or its mount is loose or cracked.

See this file on safety and this file on door switch diagnosis and replacement.

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.

Removing that will make the switches accessible.

If you only need a switch, you can order a universal type here for $5 postpaid.

You can find helpful exploded view diagrams and order other parts by entering your full model number here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Roper MHE14XKB... | Answered on Aug 20, 2010


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

Microwave Oven Basic Troubleshooting Tips
http://www.fixya.com/support/r5508031-microwave_oven_basic_troubleshooting

heatman101

Roper MHE14XKB... | Answered on Aug 07, 2010


If you have a friend to help you lift down the unit, you can replace the magnatron which may cost about 100-150.
Take model# and go to: www.partselect.com and find your part there at a good price

Roper MHE14XKB... | Answered on Jul 31, 2010


You should be able to find the installation instructions here.

You can find links to helpful exploded view diagrams and part ordering help here.

I recommend that you bookmark that link to your favorites. We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Roper MHE14XKB... | Answered on May 06, 2010

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