Microwave oven suddenly stopped working but the clock still lights up.

William Miller

• 9179 Answers
• Posted on Nov 26, 2007

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.

William Miller

• 9179 Answers
• Posted on Dec 13, 2007

SOURCE: Setting clock on Westinghouse WST3501 microwave oven

Normally you would press Clock, enter the desired numbers, then hit Clock or Start. Try it with door open and with door closed.

Otherwise, contact Westinghouse Small Kitchen Appliances at 800-947-3745 or see http://www.saltoninc.com/contact/contact.html

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

William Miller

• 9179 Answers
• Posted on Jun 08, 2008

SOURCE: GE microwave oven - just stopped stopped working

A microwave can be dead for many reasons.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

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

NOTE: There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting.

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

William Miller

• 9179 Answers
• Posted on Jun 23, 2008

SOURCE: JVM1740SM1SS

Your membrane keypad has probably failed.

If you might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

It's at http://www.microwavedisplay.com/keypad_replacement.pdf

We have critical safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

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

Essentially you unplug the oven from the wall outlet, and remove the control panel assembly as per the instructions at the site linked above.

(Remove the grille from across the top, remove the top screw in the control panel frame, then lift up & out).

There should also be a very helpful "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille.

Then unplug the keypad from the circuit board, heat up the keypad from the front with a hair dryer, then peel the old keypad off.

You have to make sure all the old adhesive is off or the new keypad will not stick.

I use paint thinner or mineral spirits, then follow up with isopropyl alcohol to be sure the panel face is squeaky clean and dry.

Then peel the backing paper from the new keypad and carefully press the new keypad in place.

You need to be precise - you cannot apply it, peel it off, then reapply it.

If you would like to have us do this for you, we do that for $39.95 plus part costs.

Please feel free to contact me directly if you need more help.

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

William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com

SOURCE: Our microwave suddenly stopped heating. The

sounds like the magnatron went out