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Sharp r-530ek-t on pressing start does not turn light is on

When start is pressed, the countdown starts, the light is on, but the fan or turntable does not start. When the button to open the door is slightly pressed, fan starts and turn table turns, but turns off when hand is removed. If I keep the button pressed continuously, the water does heat. So it looks like the switch is not OK. What is the problem? What do I need to replace? Can I do it myself? What is the cost of the part? If I take to a repair shop, what should I expect the cost to be?

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  • Sharp Master
  • 9,047 Answers

The bottom door switch is defective, or its mount is loose, misaligned, or broken.

Replacing it's not a difficult DIY job.

The service manual is here. My help file on door switches is here.

FixYa doesn't notify me when there's a response, so if you have other questions, please contact me directly.

- William E. Miller, AS-EET
pupista@gmail.com
http://www.microwavecontrol.com
Microwave Oven Control Panel Repair Nationwide
"Recycling by repairing since 1982"

Posted on May 28, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave Oven Problem

Quite often this is due to a bad door switch. Opening the door while cooking (without first hitting the STOP pad) is the primary cause of door switch failure. It's probably not actually heating with the door open, but better safe than sorry! If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your full model number (without the suffix) here: http://tinyurl.com/gv383

Posted on Apr 10, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: 1800 XL JVM1860BD - won't work

It sounds like your controller may be failing. Or it could be an electrical line problem. Any other electrical itmes giving you trouble? Has anyone measured the voltage level of your power line? It should be around 110-125 volts AC. If it's significantly lower or higher, you may have a bad connection in your breaker panel or in the wiring leading to the home.

Posted on Sep 28, 2007

poizniv
  • 2 Answers

SOURCE: turntable continues to rotate.

Hey, actually did some playin around with door and lifting it and believe it or not-slamming it several times, and each time it done the problem, then all of a sudden the light went out, and I could push the start (one minute instant button) and it worked...so I guess it would be the sagging of the door, and its actual fit when shut regular...I know it sounds like its not fixed, and it will more than likely eventually stop working, but, my thoughts are I could slam it to death and get out of it what its worth, or have to buy another one anyway....I know this isnt a fix, but I personally couldnt take it apart to tighten the door, maybe I will mess with it some more....Good Luck sorry its not a fix....Sandra

Posted on Jan 27, 2008

tiway1
  • 100 Answers

SOURCE: 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.

Posted on Dec 23, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Have a Sharp R930AK microwave.

You probably have a problem with the bottom door switch, or its mount may be loose or damaged.

We have the service / repair manual for this model and have uploaded it to our site here for free download to help you.

It will give you safety info, step by step help in disassembly, troubleshooting tips, and part numbers.

You can order parts from Encompass here or you can call them toll-free at 866-779-5835.

If a switch is all you need, we offer a universal type for only $5 postpaid which you can order here.

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 still have questions, please reply back, otherwise...

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

Posted on Jul 30, 2009

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2 Answers

My microwave has stopped working. Everything functions properly, including the light when the door is open, and the timer countdown begins when I press start, but the actual unit will not turn on...


Sounds like a bad magnatron (the part that emits microwave energy) or maybe just a bad door switch. If the door switch is bad it won't let the unit come on.

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You could download the service manual from this website and go to page 11-1 for instructions on removal of top cover.You should then be able to access the latch from the side as it is under the control panel.

The manual also provides repair procedures on different problems.
You have to be vary careful with microwave oven interior and at all times when working on it the power chord should be taken out. There area also high frequencies and precaution must be taken and never turn on without the top cover back in place.
http://031d26d.namesecurehost.com/mwd//r530ekt_r530est_r530ewt_sm.pdf

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Assuming the turntable, inside light, and internal cooling fan all work when you press "Start" to cook, then I would suspect a bad magnetron, or a bad connection at the "FA" terminal of the magnetron.

If one or more of those three items do not work when you hit "Start", the I would suspect a bad door switch or mount.

The DCS MO24SS is essentially a rebranded Sharp R-530E-series microwave with different cosmetics and a higher price.

The service manual for the Sharp model is here.

The internal Sharp parts in the manual will interchange, but not the external cosmetic parts.

You can order Sharp parts from Encompass here.

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From the description one of the door switches is defective, or a more serious problem has developed.

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Most likely it is the magnatron has gone bad, this or the fan for the magnatron. If your handy you can dissasemble the unit and look for a damaged fan, if none found then the magnatron is most likely bad.

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it has nothing to do with the magnetron. first you have to fix step one. then you will know if the magnetron is bad. its one or two of the primary switches on the bottom of the switch tower. usually with these mw if you dont press cancel to stop the mw, and you just push the latch to stop it, those wires heat up and cause the microswitches to burn and loose proper contacts.

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Operating functions:
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I would definitely suspect the door locking mechanism in this case. If it was the sensor it would start and then stop within a short time.

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