Question about Kenmore 62622 Microwave Oven

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Keypad only works

Kenmore model 665.62612200, nothing works but keypad. checked fuse, works. keypad thinks the oven is cooking (counts down, etc.). no lights, fan, hood vent, etc.

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Re: Keypad only works

This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

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, and our link is at our listing here on FixYa:

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

Posted on Feb 13, 2008

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1 Answer

Control panel not responding to touch -- NOT in locked mode!

Sounds like you have a shorting membrane keypad, or there any be moisture or grease in the controls.
To remove the controller to check for grease and moisture, see the video here.
We would need your full model number from the tag in the cooking cavity or elsewhere on the oven to help you further, and our advice is free.
Please post a new help request with the full model number.

Jun 09, 2013 | GE Appliances 30" Trivection Built-in...

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Stopped turning and heating

The problem is one or two bad door switches, "more than likely" the less likely is the keypad control board.

Apr 12, 2012 | Kenmore Microwave Ovens

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The Dacor DMT2420S microwave has power. Instrument dial is lite and the timer works. I can program the keypad however the turntable will not turn and the microwave will not work. The timer will count down...

There's no reset button, and if the fuse were blown, the oven would be totally dead.

Your problem is almost certainly a failed secondary interlock (bottom door switch) or its mount.

You can see our help file on door switches here and the service manual here.

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

Jun 20, 2011 | Dacor Microwave Ovens

1 Answer

Microwave doesn't work

Sounds like you have a faulty control panel. I would use a meter and test the power from the control board to the magnetron and circuit board. Chances are the control panel is faulty

Jul 25, 2010 | GE Microwave Ovens

1 Answer

Enter time & press Start the timer begins but no heat

Sounds like you have a bad door switch. make sure each button on the top of the switches snaps back up after it is puched down. Also, look at the wires where they push onto the switches. if any of the plastic insulators look brown you have a bad connection there and will need to replace the switch and the terminals going to it.

Sep 11, 2009 | Microwave Ovens

1 Answer

Microwave keypad issue

You have a failed membrane keypad.

Most of the time, this is an economical fix. But shockingly, this keypad runs a whopping $110!

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

You can usually find exploded views and order parts by entering your model number at the Sears parts site.

A full Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########

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 & testing.

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

Feel free to contact me directly (and please remind me of your model number) for more information & help.

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

William E. Miller

Dec 02, 2008 | Kenmore 62622 Microwave Oven

1 Answer

Start button on microwave does not work

Some numbers are missing off that model number. Would that be model 721.62622200?

(If not, please reply back with the correct model number off the tag)

If it's cooking with the programmed buttons, but Start is not working, it sounds like the keypad has failed.

The keypad for model number 721.62622200 is no longer available as a separate part.

So you'd have to buy the entire controller assembly, which includes the plastic frame, keypad, and circuit board, etc.

It is part # 4781W1M307A and it runs $110.10 at the Sears parts Web site.

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

Jul 17, 2008 | Kenmore 62622 Microwave Oven

2 Answers

Cannot get display on oven. Checked fuse, ect., have power to board. Checked door switches.

Does the oven still operate (keypad, cook, etc) even with the display not working?

If the oven does NOT work with keypad:
If you have confirmed that you have the proper DC voltages(s) to the microprocessor board, it sounds like there has been a failure on the microprocessor board.

If the oven DOES work with keypad:
It sounds like the display driver or display itself has failed.

In either case, you'll need to take it to be serviced.

Please let me know if I can be of any further assistance to you.

Good luck!

- Jim

Feb 14, 2008 | Microwave Ovens

1 Answer

Keypad counts down; but no cooking

j..first, I'd check the internal fuse on this unit. It sounds like it is blown. Alternatively, you might have blown a thermosensor if you don't have a fuse. Generally, they are found clamped in sheet metal attached to the side of the oven in the control area. They are usually the size of a dime in diameter and about 3/8 inch thick with two plug ins. With the power off, have a look at it using a tester. It should have continuity...if not replace it. No tester? Remove both plugs, and connect them using a paper clip and tape up. Plug in and try it. If it works...replace the sensor...never operate without one!

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