Question about Microwave Ovens
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: regarding microwave
My microwave is running but not heating food,model R-248J(S),S/No: 070737958,I hopw i will get better solution ,thank You.
Posted on Apr 12, 2009
SOURCE: Sharp Microwave stopped heating
If it is working but not heating, then test the high voltage
capacitor,the rectifier diode.or the magnetron. If all this are fine,
test the control board.If turntable is not running check also the door
The diodeand capacitors can be tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, evenif power is off.Capacitors can get discharged by shorting their two contacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.
All locations, and description of this parts can be located using the diagram here: Counter top.
Parts must be tested to find out what is wrong.
Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.
Regarding parts, contact the seller here to purchase parts.
You can also order from MicrowaveSvc , they also provide parts.
Posted on May 16, 2009
is usually caused by either a bad bottom door switch or a loose bottom door switch
mount, which are pretty simple problems to fix.
Even though a door switch clicks, it may still be bad inside.
Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.
There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.
The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.
Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.
If the switch mount is broken, it's usually more economical and safer to add a dab or two of hot glue to the mount to secure the switch. Let it cool for about 30 minutes before using.
If you only need a switch, you can order a universal type here for $5 postpaid.
We have the service / repair manual for this model and have uploaded it to our site here for free download to help you.
At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
William E. Miller
Posted on Aug 30, 2009
get rid of it your transformer blew out they are to costly to replace and potintialy dangerous to work on unless you are trained technican
Posted on Oct 08, 2009
I don't know of a reset button but there is a fuse that you have to remove the outer cover to get to that has a habit of blowing
Posted on Sep 01, 2010
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