Question about Sharp R-1480 Microwave Oven

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I'm having problems with the door switches on my R-1480

I originally had one switch go bad, which I replaced. The micro has been working for about 9 months now, but the other day I had another problem.

The micro would turn the light on if the door was open and run the fan, and when you closed it the light would go out, when you put in a time and hit start, it would just click and wouldn't start.

I've tried replacing the switches, and now the light stays on all the time, and the fan does not start. My repair shop only had the D3V-16G-1C25 switches to buy, even though two switches were V-16G-3C25. Would this change in switch # affect the operation of the micro?

Thanks!!

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We have the R1480-series service manual for this model and have uploaded it to our site here to help you.

You will need the free Adobe Reader to view or print it.

Double-check your wiring against the "pictorial diagram".

The switches will have a "C" (common) terminal, and a "NO" (normally open) terminal, and some will have a "NC" (normally closed) terminal.

As long as those connections are the same and the voltage and current (amps) ratings are the same or higher, any number of switches will work.

Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.

Door switch or mount trouble can be 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.

It's easier to secure the switches with hot glue than to replace the latch heads, by the way.

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

Posted on Aug 09, 2008

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1 Answer

My oven suddenly stopped working


Most microwave ovens have up to 4 micro switches in the door latch, it's a safety interlock. These can go bad, and cause the oven to not function.
Micro switches are pretty inexpensive, and can be replaced. You need to open the oven, and then identify exactly which micro switches you need. Both my current microwave ovens have done this, and I've replaced the bad switches. They work fine now.

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My microwave wont turn on. the power works, clock, timer and all electrical is working, it just wont turn on.


Most likely you have an interlock microswitch problem or a latch problem. as you just open or just close the door VERY slowly listen for 3 distinct clicks one for each of the 3 interlocks. Two you will hear as you press the door open button and the last one you will hear as the door just opens or closes. If you do NOT have 3 clicks you have a bad micro-switch.
The micro-switches you can purchase on line here:
http://www.repairclinic.com/Sharp-Microwave-Switch-Parts

Owners manual: (Provided only for telphone contacts in first 2 pages.)
http://files.sharpusa.com/Downloads/ForHome/HomeAppliances/MicrowaveOvens/Manuals/mic_man_R530ES.pdf

I think you just have a simple micro-switch problem. However... if the latch assembly that holds the switch is cracked or broken it will have to be replaced. I have seen the plastic latch assembly fail causing the switch not to work properly.

Thanks for choosing FixYa,
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My microwave runs, but does not heat. Model 530ck


Hello :

This happens because of a bad door switch . The plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door .

Check also the turntable . It could be out of it's right place .

WARNING :

1:Don't slam your microwave door because this may cause the fuse to blow and this is the reason of bad door switch problem .
2: A microwave is capable of giving you a serious electrical shock even when it's unplugged , so I recommend you to call a repair technician for help .

PLEASE DON'T FORGET TO RATE !

good luck .

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That would probably be a bad secondary interlock (bottom door switch) or its mount.

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

You will need the
free Acrobat Reader to view or print it in case you don't have it.

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 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.

Dec 11, 2008 | Sharp R-1480 Microwave Oven

1 Answer

Micro/convection stops every minute


This is 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 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 photo 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. You will need the free Adobe Reader to view or print it.

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.

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It's probably a broken tab on the dooir switch mount or a screw holding the door switch mounts is loose.

Even though a door switch clicks, it may still be bad inside.

This can be caused by slamming the door or by habitually opening the door while it's cooking without hitting the Stop pad first.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can find an exploded view and order parts by entering your FULL model number here: http://www3.sears.com (the 3 is correct)

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

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

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