Power is on, but the keypad isn't working. it's an old model. sharp rb220bw but hardly used. the film protector on the keypad is still on.

test the following steps and fix it.use the VOM God bless you
1. No power to outlet (overload or fault in microwave or other appliance).
2. Blown main fuse - likely due to other problems.
3. Open thermal protector or thermal fuse.
4. Defective controller or its power supply.
5. Clock needs to be set before other functions will operate (some models).

The first thing to try is to do 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.

If it still doesn't work, it may need repair, which can be done for $39.95 in most cases.

The magnetron has failed, or the inverter board, "if 7 years old or less" there is also a possibility the keypad control board may be the problem.

No! I'am afraid not, the problem is in the keypad control board, the whole assembly must be replaced, the part alone will cost around $100.00 or more depending on make and model.

This model is obsolete, so information is hard to find.

Until the keypad (which is no longer available) finally fails, though, it's worth replacing other parts.

These were great old units.

The monitor switch will usually be in the middle near the fuse.

Assuming there is not a lever on your monitor switch, a universal type will do.

If there's a lever, you may need to break the old switch apart and move the lever to the new switch. See this video for instructions.

See these files:

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.

Most microwaves use a membrane type keypad that is glued to the front panel..they can be expensive though, but aren't too hard to replace...it involves removing the cover...unplugging the keypad ribbon cable...removing the old keypad...and reinstalling the new keypad

First of all is it really the membrane keypad itself, or just the clear protective sheet over the keypad which you're supposed to remove when it's new?

Keypad trouble can be serious, 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.

If it's really the keypad and less than one year old, it would be fully covered under warranty as long as it's not been damaged by outside forces. I'd suggest contacting the manufacturer to get it fixed free.

You can contact Sharp at 1-800-BE-SHARP (1-800-237-4277) or visit them online.

If it's out of warranty, or 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 order parts from Encompass here or you can call them toll-free at 866-779-5835.

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 full model number from the tag on the unit) 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, AS-EET
[email protected]
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide

There are two options here:

1. Order a new control panel frame which has the keypad, trim piece and door button already installed and swap your control boards into it.

The original part number FPNLCB346MRK0 has been replaced by part # FPNLCB346MRK0B and it runs $58.28 plus shipping.

2. Disassemble your control panel frame, peel off the old keypad and stick a new one on.

Even though the keypad alone runs only $35.66, this job takes a lot of time and labor.

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

Whichever option you choose, we have the service manual for this model and have uploaded it to our site here to help you.

You will need the free Acrobat Reader to view or print it in case you don't have it already.

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

You should be able to get a replacement keypad, and that's not a hard job for a DIYer.

If you're interested, post your correct brand and model and I'll give you a more specific suggestion.

(Your post subject says Jenn-Air M169B put it's posted under Sharp R-316FS so I'm not sure which you have).

If it's a Jenn-Air, you can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

You can usually find Sharp exploded views by entering your FULL model number here: http://www3.sears.com (the 3 is correct)

You can order Sharp parts from there or from Tritronics at http://www.wehaveparts.com

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

Sorry, but that makes it unrepairable.

It may be possible that your insurance company may cover part of the replacement cost if you had flood insurance.