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Kitchen aid microwave khms2050SSS-2

Everything working and sounding as it should when turned on but does not heat up at all inside and then completely stops with Error code F7 after about 20 seconds

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6ya6ya
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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9047 Answers

SOURCE: buzz, plastic smell and no heat

Chances are you have a magnetron that's failing. GE had a rash of "underperforming" magnetrons on these units. They replace the magnetron, stirrer and high-voltage diode at no charge for parts as long as a GE-authorized service center does the work. Sometimes the unit gets run too long in a failing state and the waveguide and chassis of the oven get damaged. The bulletin shows you where tyo check. To see if yours is covered, see this bulletin: http://www.microwavedisplay.com/ge_mw_mag_kit_bulletin.pdf Otherwise, you need to contact GE Customer Relations at 1-800-386-1215 as soon as possible and tell them your problem and they will put you in touch with a local authorized servicer.

Posted on Apr 11, 2007

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MicrowaveSvc
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SOURCE: Kitchen aid microwave oven not working.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

I'd say you have a contaminated or failing keypad or possibly residue on the boar dor where the keypad connects to the board.

Is it possible that some spray cleaner got into the controls?

I always recommend that users instead spray cleaner on a soft cloth then wipe the control panel.

Also, I always recommend non-ammonia cleaners since ammonia can crack and damage plastic.

Otherwise, the spray can get into the controls and lock it up or make it act odd.

If it does not dry out over time, it may need to be manually dried or blown out.

The keypad may be damaged or worn out, or control unit may be damaged.

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

Posted on Nov 26, 2007

  • 1 Answer

SOURCE: Microwave won't heat food.

My Whirlpool microwave, over the stove, stopped working when my son used it to heat his food and a heavy sound came out, like something exploded in it. When I check it, there was nothing broke. Everything works fine except that it does not heat. I will appreciate any help

Nate

Posted on Nov 09, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: I turn my microwave on and it turns off after about 2 seconds

If the digital programmer circuit / controller does not get a feedback signal from the inverter for a period of 3 seconds, the controller will stop the cook cycle.

It may be a loose connection in the wiring between the inverter, magnetron, and/or control board, or maybe one of those components has failed.


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

In Canada, you can find an authorized Panasonic servicer here.

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

Posted on Dec 28, 2008

MicrowaveSvc
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SOURCE: Microwave turns on & control panel is frozen. F2&PAN error codes

You have a shorting membrane keypad. If and when an oven is coming on or doing anything by itself, this is very dangerous and can result in a fire.

So until it is repaired, please leave it unplugged or leave the door open when it's not in use, and please do not leave it running unattended.

On this model, the membrane keypad is not available as a separate part, so you would have to order the control panel frame which comes with a new keypad.

In this case, you simply move your circuit board into the new frame.

That is a simple do-it-yourself job.

You can find helpful exploded view diagrams and order parts by entering your full model number (KHMS155LWH1 without dashes) from the tag on the oven here.

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.

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

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Posted on Jun 11, 2009

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1 Answer

I have a Kenmore Elite Speedcook Microwave oven, model #665.63783600. What does error code F7 mean on this model?


F7 Error Code On Microwave Ovens With Inverter Board

An F7 error code could be an inverter board failure. Anything else that prevents microwave energy may also cause an F7 error, and must be checked. The technician should perform the following procedure to test for an F7 error code:

1. Check the magnetron.
2. Check the magnetron TCO (it should be closed).
3. Check the 3 interlock switches.
4. Check the harness wiring.
5. Check the electronic controls.
6. Check the inverter board.

For more free help, feel free to contact me via my site with your detailed symptoms and full model number and FCC ID number as shown on the tag in or on the oven.

Nov 18, 2016 | Kenmore Microwave Ovens

1 Answer

How CAN i TEST MY MICROWAVE?


Most common cause of an F7 code on these models is a bad inverter or magnetron. Generally it is best to replace both the magnetron and the 1100 watt inverter board at the same time, since a bad magnetron is usually what burns out the inverter board.

Jul 24, 2014 | Whirlpool Gold GH5184XPS 1.8 Cu. Ft. Over...

1 Answer

Code f 7


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. It should cover an F7 error code.

A video is available here showing how to remove a typical over the range control panel assembly in under 5 minutes.

This may help:

F7 Error Code On Microwave Ovens With Inverter Board
MODELS: GH9177XL, GH9185XL, MH9180XL, MH7155XMS, & KHHS178L for example

An F7 error code could be an inverter board failure. Anything else that prevents microwave energy may also cause an F7 error, and must be checked. The technician should perform the following procedure to test for an F7 error code:

1. Check the magnetron.
2. Check the magnetron TCO (it should be closed).
3. Check the 3 interlock switches.
4. Check the harness wiring.
5. Check the electronic controls.
6. Check the inverter board.

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

I recommend that you bookmark that link to your favorites.

Oct 15, 2013 | Whirlpool Microwave Ovens

1 Answer

KitchenAid KHMS 2050 SSS, doesn't heat up and indicates "Error Code F7, VH SMPS feedback, call for service"


Hi asoleyma,
This error code F7 from a Ktchenaid oven means that the function key is stuck on ERC. This can be fixed by having the control board (also called ERC or clock) be replaced.You may contact Sears for the replacement part at 1-800-252-1698; M-F 6:30 AM-10:30 PM - Sat 7:00 AM-9:30 PM - Sun 7:30 AM-9:30 PM - All times Central. Just get your model number ready when you call.
Hope this helps.
Thank you for using FixYa.

Jan 30, 2011 | KitchenAid KHMS155LSS 1000 Watts Microwave...

1 Answer

My kenmore elite microwave when turned on shows a f7 error code.


f7 keeps showing up and the microwave keeps cutting off,f7 code shows up. what do i do

Oct 26, 2010 | Kenmore 68361 Microwave Oven

1 Answer

Touch pad doesn't work


ut the tech sheet did mention that intermittent F7 problems are usually caused by poor connections. So I pulled the ribbon connector off the control board and cleaned the copper connectors using a pink pencil eraser. That whupped that puppy! But then I went out on another service call, same oven, different house. The pink pencil eraser trick didn't work on this one so I had to apply some of that famous Samurai gray matter. To identify the problem on this one, I cut power to the range and disconnected the ribbon connector that connected the touch pad to the electronic range control (ERC) board. Then I re-applied power and let it sit that way for 24 hours after which the customer was instructed to call me and report on the error code status of the oven. If no error code was reported, I knew the touch pad was the problem. If, on the other hand, the F7 error code came back, then I knew the (ERC) was the culprit. In this case, the error code did not come back during the test period and, using my keen, Vulcan-like powers of deduction, concluded that the touch pad was defective. I replaced the touch pad and problem solved!

Mar 15, 2009 | GE Profile Spacemaker Over-the-Range...

2 Answers

Microwave troubleshooting


I found the fix to the F3H error on another site. Just turn the power to the microwave off for ~2 minutes at the circuit breaker, and then turn it back on. Microwave will start working again then.

Feb 23, 2008 | Whirlpool GH5184XPQ Microwave Oven

4 Answers

GH7208XR Error Code #7


Behind the right front corner faceplate is a bag with the tech support info.
I used this and went through all the troubleshooting and got to the power inverter board. This board has the 2 red wires out of it that go to the magnetron. Instead of replacing the whole inverter module , I examined all the components on it. I found that there are 2 high voltage rectifier diodes attached to the transformer and 1 of them was not testing good. The diodes are UXC2B diodes.. Just clipped out the bad one and soldered in a new one.
Hope this helps..

Dec 21, 2007 | Whirlpool GH7208XR Convection / Microwave...

1 Answer

F9 error code


F9 is caused by either a bad door switch, a loose door switch mount.

Even though a door switch clicks, it may still be bad inside.

This can be caused by slamming the door or by habitually opening the door while it's cooking without hitting the Stop pad first.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

Nov 26, 2007 | Kenmore 63662 / 63664 / 63669 Microwave...

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