Question about Sharp Microwave Ovens
How to access oven light globe
Posted by Anonymous on
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Posted on Jan 02, 2017
A microwave can be dead for many reasons.
The fuse is normally located on the floor of the chassis behind the control panel or between the door switches.
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.
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.
When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.
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 it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.
If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.
You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.
If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.
If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Jun 23, 2008
SOURCE: I NEED A MANUAL FOR
I was looking for a manual for the oven, finally found someone to talk to from Sharp Co.
He did not have a manual but had me try some of the buttons on the front of the oven.
Some, in fact most, of them do not work. It was the convection part of the oven that I wanted to use because I am alone and do not always want to heat the oven for just one small something.
I am afraid it has been stored too long and would cost more to have it fixed.
Thanks for the e-mail.
Posted on Aug 01, 2008
Are you talking about the light inside the microwave? The front vent I think will allow you to get to the bulb. Should be a couple of small scrrews holding the vent cover on, remove them take vent off. Start it up again and see if the light bulb wiring or socket is arcing
Posted on Sep 17, 2009
To replace the light you will first have to remove the outer shell.
To do this
(1). Remove all of the screws on the back of the microwave that hold on the shell
(2) Remove the screws that are on the bottom.
(3) now the shell should slide off towards the back of the microvave.
Note : this may take a little bit of pressure to get it off ok?
(4) Once the cover is off look towards the fromt of the microwave and
you will see the bulb. now just replace the bulb and reinsert the cover and the screws and you are all done ok? pretty easy ha/
best regards michael
Posted on Sep 28, 2009
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