Question about Sharp R-1850A Convection/Microwave Oven
After replacing the capacitor and the fuze, the microwave now works, but the light won't come on, even with a new light bulb. Tested the bulb and it works okay in another microwave. Do you think that there may be some other problem before we put this R1850 Sharp Microwave back over the stove?
Do you get anything on the display when you plug it in? If not, then the magnetron temperature fuse may be blown, too.
Did you get all the connectors plugged back into the circuit board if any were removed?
There may be a relay problem on the board. The following service manuals on our site may help you:
I also do board repairs. 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
Posted on Jun 23, 2008
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Posted on Jan 02, 2017
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Microwaves are a quick, convenient
solution to the hassle of preparing and cooking hot dinners. They are
popular appliances with students and large families where food often
needs to be prepared fast. Microwaves use radio wave technology
harnessed through an antenna, known as a "magnetron," to create friction
between food or liquid molecules, causing them to heat up. Some
microwaves can cease to function properly, resulting in the appliance
running but failing to produce any heat.
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