Question about Whirlpool Microwave Ovens

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I have a Whirlpool WMH2175XVB-2 Microwave. It runs for 2 seconds and goes back to the clock. The 24VDC Contact is making a clicking sound for the 2 seconds.

Will changing the contact fix the problem?

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  • Expert
  • 61 Answers

Check for diodes that are fixed parallel to the coil of that Relay.
It can be replaced with IN4007.with correct polarity

Posted on May 18, 2014

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave quit

I would suspect either door switches or an intermittent control circuit board, either of which can be repaired. Opening the door while cooking (without first hitting the STOP pad) is the primary cause of door switch failure over time. I have a text file on my site called "doorsw.txt" which helps in diagnosing and repairing door switch problems. You can find the file via a Google search. It will help you check and replace the door switches if you or an able friend is so inclined. In some cases, the problem is a bad connection or a bad relay on the control board. That's something we see fairly often, and we repair them for only $32.50 nationwide.

Posted on Oct 12, 2006

  • 2 Answers

SOURCE: Microwave shuts off after 2-5seconds

The problem is most likely the magtube, it takes aprox 3 sec for the tube to energize and then it kills the microwave. If you drop the control panel away and start the microwave 90% of the time it will cook fine.

Posted on May 16, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave cuts out after 23 secs

In most cases, this is a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.

I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here:

http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001

Posted on Dec 17, 2007

  • 1 Answer

SOURCE: Panasonic Model No. NN-S933BF Microwave Oven

could it be that i didn't follow the manuel because i got it second hand or is it because something is wrong with it,and i have to get it fixed.

Posted on Oct 21, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: GE Eterna Microwave stops after a few seconds, must reset clock..

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for about 5 minutes.

Otherwise, this is almost always due to a defective or loose magnetron causing electrical interference and disruption in the control circuit board.


Details covering some previous models are in their bulletin here. Even if your model is not on the list, the same problem can occur.

If your magnetron was recently replaced, it may have loose mounting nuts or bolts or maybe the wire mesh RF gasket was not installed or got pinched.

NOISY MAGNETRON TEST (c) 2009 William E. Miller prototech@usa.net

(PLEASE do not be fooled into thinking that the procedure outlined at this link is a "fix". It should only be regarded as another test method to prove that you have a noisy magnetron which must be replaced.)

One way to test it is to do the following:

1. Unplug the microwave or turn off its breaker.
2. Open the door, then detach the control panel as shown in the video at http://www.microwavedisplay.com and swing it down, but without disconnecting the wires. If you have any trouble getting the grille off once the screws are removed, slide the hood vent grille to the left about 1/4", then then pull it forward. On some models there are L-shaped clips that fit into a slot to hold bottom of the vent.
3. Plug the microwave back in.
4. Make sure neither you nor anyone else reaches in behind the control panel. There will exposed high-voltage connections.
5. Put a few cups worth of water in a microwave-safe container and place it inside the microwave.

6. Shut the door.
7. Run the microwave for about 1 minute or so on full power. (Time Cook > 1 > 0 > 0 > Start, e.g.)
8. If it does not fail, try it several more times.
9. When the water boils, change the water and try again.


NOTE:
If your model does not have a door handle, you will need to unplug the oven and reattach the control panel to be able to open the door.


If it still does not fail, I would recommend that you put it all back together and keep using it until it fails more consistently, then repeat this test.

If it keeps failing while the board is in the down position, you either have a very leaky magnetron or possibly another problem.

So you can then get a Ziploc bag and insert a flat piece of aluminum foil into the Ziploc and close it.

Then (with the power off) tape it over the circuit board as best you can, covering it as much as you can, making sure it does not get snagged or punctured.

Then try the oven again. Do not leave this test shield in place as a "fix". It is not safe.

While a microwave should never be left running unattended under any circumstances (as your owner's manual will tell you) it's even more important when one is exhibiting a failure or any odd behavior. So play it safe and stay with it while it's running!

If you or someone you know want to replace the magnetron yourself, you will need to remove the oven from the wall.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

You can download GE owner's manuals and installation instructions here.

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

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

Sometimes they will send you the magnetron to do it yourself. Call them at 888-239-6832.

Be persistent. You may have to speak with a supervisor.


If it is not within the magnetron warranty, you can find helpful exploded view diagrams and order 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.

Posted on Jul 25, 2009

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1 Answer

Nn_t964sf microwave start and stop after 2 second


If this describes what's happening:

Put in time, push start and unit runs for 2 seconds, relay clicks, unit goes off. Cook time on display goes off and clock time comes back.

You probably have a bad upper interlock switch and charred connector.

If so, see:

http://www.microwavecontrol.com/safety.txt
http://www.microwavecontrol.com/disassembly.txt
http://www.microwavecontrol.com/doorsw.txt

For free DIY and other help and advice, feel free to contact me via my site.

Always include your FULL model number*, FCC ID number*, and detailed symptom information.

* from the tag in the cooking cavity or elsewhere on the oven (or send a clear photo of tag)

William E. Miller
http://www.microwavecontrol.com
Microwave Oven Control Panel Repair Nationwide
"Recycling by repairing since 1982"

Jan 21, 2017 | Microwave Ovens

1 Answer

Sometimes oven does not work. when ya hit start it just clicks - the screen looks normal for about 2seconds & then shows the clock time.


Sounds like is what's happening:

Put in time, push start and unit runs for 2 seconds, relay clicks, unit goes off. Cook time on display goes off and clock time comes back.

That would be a bad upper interlock switch and charred connector. If so, see:

http://031d26d.namesecurehost.com/mwd/safety.txt
http://031d26d.namesecurehost.com/mwd/disassembly.txt
http://031d26d.namesecurehost.com/mwd/doorsw.txt


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

Dec 11, 2012 | Panasonic NNSN797S Microwave Oven

1 Answer

Our Whirlpool over the range microwave makes a clicking sound for a few seconds then shuts the microwave off. The microwave is unusable. The sound seems to be coming from the control panel.


If the cooling fan is not working, that would explain the shutdown problem. The function of the fan is to cool the magnetron down when it is warming or cooking the food, if the fan fails to run, the thermal fuse will detect heat rise causing a shutdown with in 5 seconds or more, the clicking suggest fan issues. I would recommend a whirlpool technician to go through the system.

Jan 27, 2011 | Whirlpool MH7140XF Microwave Oven

2 Answers

Microwave is 6 months old. clock won't light up. when i try to set cooking time the inside starts making a clicking sound and a light flashes in the top right inside


Sounds like the waveguide cover has been contaminated with food that has carbonised and burning.
Call a Whirlpool repair agent and get the waveguide cover replaced.
They need to be kept clean and leaving the door open after cooking helps to dry the moisture out in the cavity. Making it last longer.

Jan 23, 2011 | Whirlpool MH1170XS Microwave Oven

1 Answer

WMH2175XVB-1, is the model. The food doesnt heat. All else works. Suggestions???


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.

Jan 09, 2011 | Whirlpool MH6140XK Microwave Oven

1 Answer

Microwave is not heating. Everything else is working!


Hi,


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

Microwave Oven Basic Troubleshooting Tips

heatman101

Nov 15, 2010 | Whirlpool WMH2175XVB Microwave Oven

1 Answer

Microwave only runs for about 3 seconds.After


Chances are you have a failing magnetron.

But to allow us to help you effectively (at no charge), please post a
NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, your symptoms, "Microwave only runs for about 3 seconds then stops and the timer goes back to the clock mode.After several attempts then it will work.Problem is intermitten"

Dec 04, 2009 | Panasonic NN-S252WF Microwave Oven

1 Answer

Whirlpool over the Stove Microwave


This sounds like the unit is defective and if I were you I would return for replacment!

Dec 16, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Brand new.......clicking noise, will only run 2 seconds


Since it's new, I would let Whirlpool cover the repairs.

You can contact their customer service at http://www.whirlpool.com

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

Feb 17, 2008 | Whirlpool MH1170XS Microwave Oven

2 Answers

Microwave cuts out after 23 secs


In most cases, this is a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.

I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here:

http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001

Dec 15, 2007 | Panasonic NN-S550WF Microwave Oven

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