Question about Sharp R-1480 Microwave Oven

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Sharp R-1480 Microwave Oven made craking noise-now does not heat

Sharp R-1480 Microwave Oven made like a popping noise. I stopped it, when I started again sounds as if it were working but louder, and it is it not heating at all

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Replace the magnetron and check the wave guide also.

Posted on May 16, 2009


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A loud snap noise. seems to run but doesn't heat up

If it does not heat, then the problem is the magnetron circuit has failed. Would recommend that you have a qualified service person throubleshoot/repair it. One note, if the magnetron itself has failed, then buy yourself a new oven, since the parts cost is almost as much as a new oven. Sorry.

Dec 06, 2010 | Sharp R-1480 Microwave Oven

2 Answers

Sharpe model R-1480 not heating (it sounds a little louder)

A loud sort of "groaning" noise and no heat is the sign of a bad magnetron tube. The magnetron is the microwave source, and when they go bad it's usually time to replace the oven. Most microwave repairs, especially a magnetron replacement, should be left to professionals. There are lethal voltages under the cover, and the chance of microwave leakage if the repair isn't done properly. With the price of a replacement tube and labor for the repair, it's often doesn't cost much more (and sometimes even less!) to buy a new oven.

Sorry I can't give you a more positive answer, but thanks for using Fixya!

Oct 31, 2010 | Sharp R-1480 Microwave Oven

1 Answer

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Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Basic Microwave Oven Troubleshooting Tips



Jul 24, 2010 | Sharp R-1480 Microwave Oven

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Jun 17, 2009 | Sharp R-1480 Microwave Oven

1 Answer

Sharp r96st stops at 1 sec and halts whilst preheating oven

This is a problem in one of the damper-related components, either the switch or motor or the damper door may be binding.

The damper is a door inside that opens or closes depending on cooking mode. If the controller senses that the door is not in the right position, it will shut down the cook cycle.

Sharp models stop after 59 seconds.

See the attached sample photo for a typical damper assembly.

Info on ordering Sharp UK parts / spares is here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.


Jan 29, 2009 | Sharp R-1480 Microwave Oven

1 Answer


20 A fuse inside m/w is out. The problem could be with HV condenser, one of the door switches shorted, computer board, magnetron. Needs technician to take a look on it.

Dec 03, 2008 | Sharp R-1480 Microwave Oven

1 Answer

Outside caseing heating up while cooking`

Also, Please reply back with your brand and model number so we can help you.

Nov 20, 2008 | Sharp R-1480 Microwave Oven

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