The fuse is given inside the microwave next to the mains cord connected inside , it can be checked by series tester or by a multi meter ,it must provide the continuation.
SOURCE: R-4H84 Sharp Carousel II microwave oven stoped working
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.
SOURCE: My sharp carousel II microwave doesn't seem to
Is it dead, meaning no
display, no light when you open the door and no beeps when you press a
pad on the keypad?
We have
the relevant service / repair manuals for this model and have uploaded it to our
site here and here to help you.
They will give you safety info, step by step help in disassembly, troubleshooting tips, and part numbers.
Most computers will open these documents automatically, but you may need the free Adobe Reader
I would suspect the 20A ceramic line fuse or the magnetron temperature fuse.
You can order parts from Encompass here or you can call them toll-free at 866-779-5835.
20A ceramic fuses are available at local appliance part stores or places like Wal-Mart and Lowe's.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
SOURCE: Sharp Carousel Model#4A58: was cooking & made
If you have no power what so ever its probably the main fuse inside the mirowave. You'll have to take it apart. If you try this yourself unplug it then there are several screws around the cabinet of microwave remove them and make sure that they go back where you took them out from because they may or maynot be the same size or length. once you get the cabint off follow the plug wire up into the micro wave there may or may not be a fuse on the wire just inside the frame of the Microwave but it will be close when you find it take it out and replace with the exact size take it to a appliance parts store and get the replacement.
Testimonial: "Thank you! Replaced the fuse, power came on, but blew under load. Old micro, time to chunk it. Thanks for the $2 troubleshooting suggestion! Karen"
SOURCE: Sharp Carousel micro does not
the problem is one of 2 things. Either the magnetron has gone bad, or there is a blown fuse inside the machine.
SOURCE: No instruction book for Sharp Carousel Micro-Conv
You can find many of them online here.
Otherwise, you would have to order yours.
You can order Sharp parts and manuals from
Encompass here
or you can call them toll-free at
866-779-5835.
We're
happy to help you with free advice and we'd appreciate your thoughtful
rating of our answer.
105 views
Usually answered in minutes!
×