Question about Sharp R-1460 Microwave Oven

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NO HEAT I HAVE A SHARP OVER THE RANGE MICROWAVE OVEN R- 1491 IT WONT HEAT UP

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Test the high voltage capacitor, the rectifier diode.or the magnetron. If all this are fine, test the control board.

If it additionally does not spin and no light, then check also the door switch and fuse.

The diode and capacitors can br tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, even if power is off. Capacitors can get discharged by shorting their two contacts.
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. (here in UK).

Posted on Apr 27, 2009

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1 Answer

Electrical short /pop sound & now it doesn't heat. Everything else works. Any idea what went out.


The signs are not always evident, but from the description the magnetron has failed.

Apr 13, 2012 | Sharp R-1491 Microwave Oven

1 Answer

Microwave will not work


Even though you don't mention the model number, you posted under Sharp model R-1491, so I'll assume that's it.

You say when trying to work the actual microwave, you get nothing?

We could use a little clarification, but FixYa only gives you one shot at posting a help request.

When you enter the cooking time and press "Start", if the timer counts down and the oven lamp comes on, but the the turntable, cooling fan, and microwave section do not run, then you have a bad secondary interlock (bottom door switch) or its mount is bad.

We have the applicable service manuals for these models and have uploaded it to our site here and here to help you.

Also look at this info on door switch diagnosis and replacement.

Hope this helps.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide

May 30, 2010 | Sharp R-1491 Microwave Oven

1 Answer

Need wiring diagram for sharp carousel microwave model r-1491


I found one for mind on the inside of the outside cover caseing. just need to unmount from wall and remove the six screws of the back to remove it.

Nov 13, 2009 | Sharp R-1491 Microwave Oven

1 Answer

Our r-1491 microwave fan won't shut off, even when


its just the door switches playing up on you,,but is it worth getting it fixed? after all a new microwave onle costs from £50 up today,,
please dont try fixing it yourself unless you realy know what you are doing in there, there is 1000's of volts hiding in there even if its been switched off for days, and them volts will kill you,
have you ever seen a stun gun working???it realy hurts you,,,,,this microwave has the stun guns big brother inside of it,,and it wont stun you,,it will kill you,, is it realy worth that for a fuw bucks?

Oct 24, 2009 | Sharp R-1491 Microwave Oven

1 Answer

Where is the fuse located on the sharp r-1491. microwave shut off once started and wont power on. thanks


when you open the cover you can see the fuse in a small pcb on the upper right side of the over.

Jun 11, 2009 | Sharp R-1491 Microwave Oven

1 Answer

Sharp r-1491


Yes call shart help line, you can find it on 411.com or googles, with you model and them the part # for the bracket and ask them were you can purchase it.
You can also try sears with your model, there or a very excelent sourse for question's on parts, if they have this model they will have all info.

Regards

Bob the builder

Feb 07, 2008 | Sharp R-1491 Microwave Oven

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