Unplug microwave, remove top, go to the right where keypad is located, follow the wire to the circuit board, look for a silver rectangular capacitor and short a screwdriver over the 2 points to remove any remainder of voltage. There should a small fuse clipped in near by, replace with same current rating, assemble before testing, carries lethal voltages when turned on.
SOURCE: Our Emerson microwave mw8117wd has
If
your appliance has absolutely no functions at all, remove it from the
mains supply, remove the case and see where the mains lead goes in to
the appliance and follow the cable until you find the main fuse.
ONLY
USE THE SAME TYPE AND RATING OF FUSE TO REPLACE IT.
The usual
cause of this fuse failure is the door switches are contaminated or
sticking. Check the door switches before putting power back on to the
appliance.
Hope this helps.
SOURCE: Emerson MW8106W Blew internal 20A fuse.
You almost certainly have a shorted high-voltage capacitor.
Here is a link you or someone you know can use for test help, but read the safety warnings first:
http://www.gallawa.com/microtech/cap_test.html
For more help from Emerson visit here or get help using your appliance at 1-800-898-9020. Get help locating a 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]
Many Emerson microwave owner's manuals are available for free download here.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
SOURCE: Emerson Microwave Model MW8119SB found blown
Chances are that either the diode or capacitor are shorted. Be very careful, the capacitor can store a charge and should be discharged first for safety. Hope that helps...
Geno
SOURCE: Plugged in my Emerson MW7300W. Light works, won't cook
there is a thermal (white ceramic) fuse located right under the cover on the top of your microwave replace it.
an electronics part store should stock it.
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