Microwave won't work...Emerson MW8102SS

Hi,

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

Basic Microwave Oven Troubleshooting Tips

heatman101

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If the 20A fuse is blowing, it is often the high voltage transformer or magnetron. If this is the case, and the microwave is not under warranty, replace it. Residential microwaves are generally considered disposable. Parts and labor are just too expensive. A magntron or transformer can cost more that half the cost of a new microwave.

most micros have either a 15amp or 20 amp ceramic fuse at the top behind the touch pad. cover has to be removed. don't touch the hv capacitor. check fuse for continuity if none replace with like fuse. if it blows again you have another problem.

Normally when you take the cover off, the fuse will be on the right of the oven on the circuit board.

There's no reset button, only a a hard reset. Unplug the unit for a minute or so. Then plug it back in and see if ti works.

A microwave can be dead for many reasons.

It may be the fuse, which is usually located on the floor of the oven behind the control panel, between the door switches, or on the filter board near where the cord comes into the unit.

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.

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:
http://www.microwavedisplay.com/safety.txt
http://www.microwavedisplay.com/disassembly.txt

For more help from Emerson visit here or get help using your appliance at 1-800-898-9020. Get help locating an authorized servicer or parts at 1-800-695-0098.

Emerson parts are distributed by Fox International and their number is 800-321-6993. Or you might try e-mailing [email protected]

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

I had the same problem with the same make and model microwave. Do I have to remove the back to change the fuse? I spoke with a Home Depot rep who said there is risk of shocking yourself if fixing it yourself. Is it worth changing the fuse or buying a new one?

Call any service center that services appliances or most any electronics parts supplier. You will have to know the specs of the thermo fuse to order one.

If the thermo fuse is blown, most likely there was an overheating condition, and there is a failure somewhere. This can be a serious safety issue. When you change the fuse, it may blow again. It would be best to verify the specifications and for proper operation of the unit before using it again. A qualified service center for microwave ovens can do this for you.


Jerry G.

normally the THERMAL FUSE is located in series with the 20 AMP power line fuse ,in most cases. hope this helps

check the thermal fuse

There is a 20 amp replaceable fuse inside the cabinet next to the power cord