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Timothy Kane Posted on Sep 15, 2019
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My Sharp Half Pint microwave oven is making beeping sounds about every 2 minutes. It is unplugged;I haven't used it for months. What is making this sound? It's about 18 years old.

2 Answers

Franco Dosil

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  • Sharp Master 10,542 Answers
  • Posted on Sep 16, 2019
Franco Dosil
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Hi Timothy, your Microwave Sharp Half Pint, does not have any receptacle for batteries, therefore, if unplugged, it cannot generate any sound
As Robert Oliver suggests, notice that another device nearby, that if it has batteries, may be making that sound
I hope you find the origin of the beeper
Greetings Franco Dosil

Hola Timothy, tu Microondas Sharp Half Pint, no posee ning?n recept?culo para bater?as, por lo tanto, si esta desenchufado, no puede generar ning?n sonido
Como te sugiere Robert Oliver, f?jate que otro aparato pr?ximo, que si tenga bater?as, pueda estar haciendo ese sonido
Espero que encuentres el origen del emisor de pitidos
Saludos Franco Dosil

Testimonial: "Thank you but the beep is definitely coming from the Half-Pint microwave oven.It's beeping about 15 minutes apart now (the beeps are not as loud ). There are no battery operated devices anywhere near it."

  • Franco Dosil Sep 17, 2019

    Timothy asks, have you checked externally, in case there is any device stuck or attached by a magnet, type Timer, and that may be generating the beep?
    Or take out the lid, to try to see why the side generates the sound and see if there is any type of battery or battery
    If you dare, please comet
    Greetings Franco Dosil

    Pregunta Timothy, has revisado exteriormente, por si hay algun dispositivo pegado o adherido por un iman, tipo Timer, y que pueda estar generando el pitido?
    O sacar la tapa, para tratar de ver porque lado genera el sonido y observar si hay algun tipo de pila o bateria
    Si te animas, cometa por favor
    Saludos Franco Dosil

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Robert Oliver

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  • Expert 323 Answers
  • Posted on Sep 16, 2019
Robert Oliver
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It's probably not the microwave then.
what else have you got nearby which might be beeping.?

Some battery-powered devices such as smoke detectors will beep to tell you the battery needs changing.?

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5 Related Answers

Anonymous

  • 5911 Answers
  • Posted on Aug 11, 2007

SOURCE: Sharp half pint

The fuse should be located on an input line filter board INSIDE the microwave. You will need to unplug and remove the outside case to get to it. Simply follow where the power cord comes in and you should see a fuse mounted on a small circuit board somewhere. This is the line filter. The fuse should be a 20 amp appliance fuse that you can purchase at any hardware store. DO NOT attempt to re-energize the oven with the cover removed. There are dangerous voltages present in the high voltage circuit (about 13,000 - 14,000 VAC). Put the outside case back on before trying an op test. Let me know if this helps.

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MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Dec 31, 2007

SOURCE: Sharp Microwave Oven

Quite often this is due to grease or food particles stuck on or behind the waveguide cover.

The waveguide cover is usually about the size of a playing card and often held in place by a plastic rivet.

It can be fragile, and the metal edges of the oven behind it can be sharp, so be careful!

The cover and the metal behind it should be cleaned with a mild, non-ammonia cleaner.

If the cavity metal of the oven is chipped or charred, it will have to be sanded smooth and clean.

Then you can apply some high-temperature appliance paint, available from places like Wal-Mart or Lowe's.

If your waveguide cover is burned, it will need to be replaced.

You can order Sharp parts from Tritronics at http://www.wehaveparts.com

If you need further assistance, please feel free to contact me directly through the links at our site: http://tinyurl.com/yzjozk

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

MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Feb 09, 2008

SOURCE: beeping sound

On GE's that's usually a shorted keypad. We can replace that for you for about $115 total.

We have full details of our service, plus *critical* safety, disassembly, and troubleshooting info at our site. You'll find a link to our site in our listing here on FixYa: http://tinyurl.com/yzjozk

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

MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on May 09, 2008

SOURCE: Sharp Covection Oven/Microwave stops after 1min on any setting

This 59-second stop failure is due to a problem in one of the damper-related components, most likely the switch, but it may also be the motor or the damper door.

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

See the attached sample photo.

If you or someone you know wants to look into this, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

We even have a video on our site that shows you how to safely & easily remove the control panel assembly to send it for service.

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

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MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Aug 30, 2009

SOURCE: Sharp model R-1871 shuts off every 59 seconds

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 drawing for a typical damper assembly.

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

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

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

William E. Miller
[email protected]
http://www.microwavedisplay.com

b27054b.jpg

Testimonial: "traced to motor for damper. Would not have had a clue without this information provided by fixya"

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Here's a link to the parts listing at searspartsdirect.com:

http://www.searspartsdirect.com/partsdirect/part-model/Sharp-Parts/Microwave-Parts/Model-R120DK/0958/0123245?searchedModel=r-120d&blt=

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

Microwave Oven Basic Troubleshooting Tips

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The fuse should be located on an input line filter board INSIDE the microwave. You will need to unplug and remove the outside case to get to it. Simply follow where the power cord comes in and you should see a fuse mounted on a small circuit board somewhere. This is the line filter. The fuse should be a 20 amp appliance fuse that you can purchase at any hardware store. DO NOT attempt to re-energize the oven with the cover removed. There are dangerous voltages present in the high voltage circuit (about 13,000 - 14,000 VAC). Put the outside case back on before trying an op test. Let me know if this helps.
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