Question about Sharp R-1480 Microwave Oven

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Sharp Microwave problem.

I get no power at all from the microwave. No display lights on the unit. no anything. so Im sayin hmmm repair or replace... but what could it be... I electrical outlet and breakers and all are good.

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Re: Sharp Microwave problem.

A microwave can be dead for many reasons.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open. Then when it cools, it closes the circuit and allows power through again.

If it's intermittent or random, it may be a bad connection, usually on the control board or fuse holder.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.

If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya:

We appreciate your thoughtful rating of our answer.

Posted on Nov 26, 2007

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Re: Sharp Microwave problem.

MY panasonic Microwave will cook for 23 seconds and then Automatically turn off... WHy?

Posted on May 25, 2008

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