Question about Sharp Microwave Ovens
Sharp Combi Microwave oven R953(SL)M
Everything works fine except LCD screen which should show timing, mode etc. The green panel lights up and shows one black vertical line so one cannot programme it.
I picked this expensive looking stainless steel oven, lovely cond. up for free at the local re-cycling centre. What makes me sick is that someone had to throw it away just because of this fault.
Looking on the net others were complaining of the same fault in similar Sharp ovens.
I contacted local Trading Standards Office and their reply was illuminating: apart from the usual guarantees, products must be fit for normal use up to 6 years - if the fault is 'inherent/genetic then they should fix it or replace it within the 6 year limit. That is in the UK of course.
I am so determined that big companies should not get away with built in faults that I intend to persue this matter.
Thanks for any help you can provide.
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Posted on Jan 02, 2017
Generally, the most common causes of a failure to heat are:
- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose conneciton on the control unit circuit board
- bad magnetron or other high voltage part
If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
Posted on Nov 25, 2007
SOURCE: Neff HTHB86K Microwave oven.
The microwave unit is faulty as you can read from the display or the controller isn't working correctly, you should take your MW oven to an authorized service center. It can be repaired by yourself but it's highly dangerous because it has high voltage inside and microwave energy.
Posted on Feb 15, 2008
This 59-second stop failure is due to a problem in one of the damper-related components, most likely the switch, but it may also be the motor or the damper door.
The damper is a door inside that opens or closes depending on cooking mode. If the controller thinks that the door is not in the right position, it will shut down the cook cycle.
See the attached sample photo.
If you or someone you know wants to look into this, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
We even have a video on our site that shows you how to safely & easily remove the control panel assembly to send it for service.
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on May 09, 2008
first thing I would suggest is a hard reset. Unplug the unit for a
minute or so. Then plug it back in, set the clock and try again.
Let us know if the hard reset does not fix it.
If it stops at 16 seconds and is a sensor model, it probably has a defective humidity sensor.
If it stops after 22 seconds, that means the controller has detected a problem, usually a problem with the inverter or a bad magnetron.
If you do indeed have a problem, Since it's less than one year old, it should be fully covered under warranty. I'd suggest contacting the manufacturer to get it fixed free.
I would recommend that you contact your nearest Panasonic-authorized servicer.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Aug 18, 2008
There are a couple of safety thermostats in the oven to shut down power if something overheats. One is on the magnetron tube (the microwave source), the other is on the cooking cavity. These sometimes go bad. There's also a power line fuse that may have failed, or become loose in its mounting clips. These can be tested with an ohmmeter; they should all measure very close to zero ohms if they're good.
Another possibility is that the control circuit board in the oven may have failed. I have worked on several Sharp ovens where the power transformer for the board has gone bad for no good reason. If the board goes bad the oven may appear to be dead as well.
Microwave servicing is best left to professionals. If you're thinking of keeping this one, take it to a service shop (or call for home service) and get an estimate. Then decide whether to repair or replace.
Hope this has helped a little. Thanks for using Fixya!
Posted on Feb 02, 2010
Testimonial: "Thank you. I will check it out and then decide whether to repair or replace."
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