Question about Microwave Ovens

1 Answer

There's no power to my sharp LC24LE240E. I've checked the fuse and power outlet and both are fine. Any ideas??

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Prodigy:

    An expert who has answered 500 questions.

  • Microwave Ovens Expert
  • 650 Answers

It may be a thermal fuse. There is a thermal fuse in most modern microwaves that will kill the unit if something gets too hot in the cavity. Sometimes the magnetron thermal protector can shut down the unit. check them both for continuity.

Posted on Nov 22, 2014

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: My Sharp over the range

Itmay be the fuse, which is usually located behind the grille or on thefloor of the oven behind the control panel or between the door switches.

Ifthe fuse is good, it may be an open thermostat or thermal cutout (TCO)/ thermal fuse on or near the magnetron or on top of the cavity / bodyof the oven.

If it goes dead for a while during or after cookingthen comes back on, the magnetron is probably overheating and causingthe magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

Ifit goes dead or blows the breaker (or GFI) when you plug it in or open or closethe door, then there's a problem with a door switch or door switchmount.

If it's intermittent or random, it may be a badconnection, usually on the control board or a loose fuse holder, oreven an intermittent fuse.

While we don't have that exact manual, we do have a similar service manual here which should be close enough to help you or someone you know troubleshoot these basics.

Once you know what's wrong, the best place to order Sharp parts is Tritronics.

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

Posted on Oct 20, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Sharp Carousel Microwave Mdl 1875 for our RV is dead


>> We also tried plugging our toaster into the microwave plug outlet, and the toaster wouldn't work in that outlet, but worked just fine in a different outlet in the RV.

This means the outlet you plug your microwave into needs to be fixed in addition to fixing the oven. Breaker? Fuse?

>> I understand from another RV forum that microwave ovens for RVs have "special circuitry and cooling features" not found in regular countertop ovens for household use.

Not really in my experience. Any microwave supplied with clean AC power and proper venting space will be fine.

But I'd bet your microwave can be fixed affordably.

The main internal things which can result in this model being dead (no display, no light when you open the door, no beep when you press a pad on the keypad) would be the 20A fuse and the magnetron temperature fuse. There could also be bad connections on the noise filter board.

Also, sometimes a power surge can cause the power to be interrupted to the low voltage transformer on the board, and I regularly repair those boards. I can also write a technical statement to your insurance company or to an RV park as needed.

At my Web site, I have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

The relevant service manuals for this model are here and here.

You can order Sharp parts from Sears or Encompass.

Contact me directly if you need more help.

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

Mar 08, 2017 | Sharp R1875: Over the Range Convection...

1 Answer

Sharp R-1870F Microwave Won't turn on


Could be just a fuse but probably the diode pack or magnetron.

May 24, 2017 | Sharp R-1870 Convection/Microwave Oven

1 Answer

I have a built-in AEG Microwave code MC166(0E?) My son unfortunately used the microwave as a timer so it was on for 30mins without anything in it. It now won't turn "on"; no light/clock...


What fuse did you change? The fuse on the wiring that leads to the microwave needs to be intact, then the fuse in the Microwave itself needs to be checked. Usually there is a plug where the microwave is plugged in, in the cabinet above the microwave, you can take another small appliance or a power tester to make sure power is available in the outlet where the microwave is plugged in. If the power is on at the outlet then you'll know that it is the microwave itself that has turned itself off for some reason. You can get manuals for these ovens at this website

May 11, 2011 | Microwave Ovens

1 Answer

I have a Sharp Model 1460A Microwave. It quit working while warming something up yesterday. Outlet is good. No power to unit at all. No light working, etc. Is there a fuse that I can check to see if it...


Dead appliance, power on wall outlet.

YOUR SAFETY IS PARAMOUNT!

Attempt this only if you are competent.

If your appliance has absolutely no functions at all, remove it from the mains supply, remove the case and see where the mains lead goes in to the appliance and follow the cable until you find the main fuse.
ONLY USE THE SAME TYPE AND RATING OF FUSE TO REPLACE IT.
The usual cause of this fuse failure is the door switches are contaminated or sticking. Check the door switches before putting power back on to the appliance.
Hope this helps.

Feb 07, 2011 | Sharp R-1460 Microwave Oven

1 Answer

No power everything was fine then nothing when i got home is there any fuses to check in the microwave


There is a fuse under the cover, as well as a couple of safety thermostats that can cause a dead oven. It may also be that the power transformer for the control circuit board has failed. I've seen several Sharp ovens where the transformer died because of power surges. This would cause no display and no functions even though the oven has power. Also, did you make sure the outlet your oven is plugged into has power? If it's a GFI outlet it may need to be reset, or a circuit breaker in your electric service panel may have tripped.

Hope this helps, and thanks for using Fixya!

Feb 28, 2010 | Sharp R-1850A Convection/Microwave Oven

1 Answer

Microwave just stopped working


  • Internal fuse may have opened
  • Door interlock may have failed
  • Magnetron may have failed
  • Control panel may have failed

Jun 19, 2017 | Sharp R-1492 Microwave Oven

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

107 people viewed this question

Ask a Question

Usually answered in minutes!

Top Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

9047 Answers

yadayada
yadayada

Level 3 Expert

75117 Answers

Cindy Wells

Level 3 Expert

5060 Answers

Are you a Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...