Question about Sharp Microwave Ovens

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Sharp R-930CS microwave turntable stopped turning and neither convection or microwave are working (ie. not heating). Lights and fan turn on and counter counts down normally.

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Look inside for one of many thermal cutouts (button type) test each for continuity (with the unit unplugged of course). Also look for burned wires and repair or replace them. If you get it running and it works fine... we're done. If it still acts up then replace the magnetron and or the capacitor.

Posted on Oct 19, 2013

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I was given one of these models that had the same problem. By following the advice below (william miller), i tested the door switches.and found the bottom one was bad. Fortunately, i had another broken sharp microwave that had the same switches in it. After changing out the switch, i now have myself a free convection microwave. thanks everyone for the advice

Posted on Nov 18, 2015

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So it looks he is working fine, but he is not heating. If you are lucky it's only de fuse. Replace it and that's all.

Posted on Nov 03, 2013

  • mikadot
    mikadot Nov 03, 2013

    They said the lights and fan are working; logically that eliminates the fuse.

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: Maytag over the Range Microvave MMV5186AAS does not heat.

You have a bad secondary interlock (top door switch) or its mount is bad.

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.

One test that sometimes helps is to gently lift up (and/or push down) on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

If you only need a switch, you can order a universal type here for $5 postpaid.

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

Posted on Jan 01, 2009

  • 36 Answers

SOURCE: Sharp 1870 just quit cooking and no turntable

The fact that the microwave and convection both do not heat indicated that the oven is in demo mode, check the user manual, otherwise it will possibly be a relay not triggering, may need a pcb replacement, check Demo mode 1st....Phil

Posted on Jan 08, 2009

jackboy
  • 2985 Answers

SOURCE: No fan, turntable or heat, but counts downs

The 'Clock, is Machanical just like an ordinary kitchen timer The reast of it is electronic, and at that age time for a new one.

Posted on Jun 26, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave won't heat, and turntable doesn't turn

All the parts you mention are very inexpensive, but yours does not have a triac.

It could be the cook relay, but it's more likely to be a switch.

Looking at the schematic, it's probably a bad primary interlock (upper door switch) or maybe its mount is bad.

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 you have a broken mount, it's usually more economical and safer to just add a dab or two of hot glue to the mount to secure the switch. Let it cool for about 30 minutes before using.

Here are some helpful links:
http://www.microwavedisplay.com/safety.txt
http://www.microwavedisplay.com/disassembly.txt
http://www.microwavedisplay.com/doorsw.txt

You can find helpful exploded view diagrams and order parts by entering your full model number here.

There may also be a "mini-manual" hidden inside the unit behind the control panel or elsewhere, which is very helpful when troubleshooting & testing.

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.

If you only need a switch, you can order a universal type here for $5 postpaid.

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

Posted on Jan 23, 2009

pgh_pa_guy
  • 2992 Answers

SOURCE: Sharp 930 AK Convection/Microwave Oven

When you close the oven door the latches operate a couple of interlock switches that control power. It may be that one of the door switches is bad or out of adjustment. It's also possible that one of the door latches is broken so it's not hitting the switch. There should be two door latches. Are they both there? This oven could be fixed by adjusting or replacing the interlock parts as needed. Because of concerns about microwave leakage from an improper door seal, you should have this oven serviced by a professional.

Posted on Jun 04, 2009

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Related Questions:

1 Answer

When the door is opened the turntable begins turning. light and fan and all seems to work but does not heat. Any ideas?


See solution posted on Jul 30, 2009 by MicrowaveSvc This solution was right on target and got my microwave fixed in 10 minutes!

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Aug 05, 2009 | Sharp R-930AK Convection/Microwave Oven

1 Answer

Sharp 930 AK Convection/Microwave Oven


When you close the oven door the latches operate a couple of interlock switches that control power. It may be that one of the door switches is bad or out of adjustment. It's also possible that one of the door latches is broken so it's not hitting the switch. There should be two door latches. Are they both there? This oven could be fixed by adjusting or replacing the interlock parts as needed. Because of concerns about microwave leakage from an improper door seal, you should have this oven serviced by a professional.

May 21, 2009 | Sharp R-930AK Convection/Microwave Oven

1 Answer

Microwave not heating up


Check the door switch, when it is faulty the oven will turn on but turntable, fan and magnetron wont operate.

Regarding parts, contact the seller here to purchase parts.

You can also order from MicrowaveSvc , they also provide parts.

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1 Answer

Sharp 1870 just quit cooking and no turntable


The fact that the microwave and convection both do not heat indicated that the oven is in demo mode, check the user manual, otherwise it will possibly be a relay not triggering, may need a pcb replacement, check Demo mode 1st....Phil

Jan 08, 2009 | Sharp Microwave Ovens

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Turntable stop working along with microwave and convection oven


would be a door micro-swtch sharp part # Sharp Part Number: QSW-MA085WRE0

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2 Answers

MICROWAVE RUNNING. DON'T HEAT & TURNTABLE WON'T TURN


your magnatron needs replaced! (It may cost less for a new one then to fix this one!)

Dec 09, 2008 | Sharp R-930AK Convection/Microwave Oven

1 Answer

Dacor dcm24s.light, fan, and control panel work but turntable and heat do not


Most likely the bottom door switch. Dacor units are built by Sharp and that switch is a very common problem. You'd either need to check the switch with an ohm meter or remove the cover of the switch to see if it's burned inside.

Oct 20, 2008 | Sharp R-930AK Convection/Microwave Oven

2 Answers

Turn table has stopped working in sharp r-930cs


We have the service manual for that model and have uploaded it to our site for you here.

Chances are the coupler or motor is bad.

You can see and hear a video of how a turntable motor should sound when you rotate it by hand.

If yours won't rotate or it sounds like it's grinding, etc., you may have a bad motor or plastic coupler.

The best place to order Sharp parts is Tritronics.

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


Jul 16, 2008 | Sharp Microwave Ovens

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