Question about Sharp R-401CW Microwave Oven

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Timer works light comes on timer goes down but no inside power

Sharp model R-52OL Carousel

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You have a bad primary interlock (bottom door switch) or its mount is broken, loose, or misaligned.

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

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

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

If you need other parts, you can order parts from Encompass here or you can call them toll-free at 866-779-5835.

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

Posted on Jun 24, 2009

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Posted on Jan 02, 2017

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1 Answer

Have a Sharp Carousel R-309YW but seems like there is a random delay time period BEFORE the sound, platter turns, and microwave works. The light comes on, and timer counts down however. Thank you!


Bottom door switch trouble or its mount is loose, misaligned, or broken.

See my help file: http://www.microwavecontrol.com/doorsw.htm

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

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Sharp Carousel R530BK microwave won't cook unless light pressure is kept on the door button.


There are door switches and one of them is evidently out of adjustment or the little actuator arm on it is.

Nov 27, 2013 | Sharp R530EWT Countertop Microwave Oven...

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The carousel turns but no light comes on inside, not is there any display light. Nothing works but the carousel. Thanks


That sounds like there is more than one fault, but maybe not. I suggest you get an appliance engineer in to take a look at it.

Jan 05, 2011 | Sharp R-820B Convection/Microwave Oven

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Sharp carousel r-508ak - does not heat up the food


You probably have a defective magnetron or blown fuse supply power to magnetron.

May 12, 2009 | Microwave Ovens

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LCD light does not come on


We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.

Although you may decide that it is more economical to replace the oven.

Feel free to contact me directly (and please remind me of your full model number) if you're interested in repair.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Mar 04, 2009 | Sharp Microwave Ovens

1 Answer

Microwave lights up, timer works, not carousel or cooking


This is usually caused by either a bad door switch or a loose door switch mount, which are pretty simple problems to fix.

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.

If you or someone you know 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:.

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

Otherwise, the best place to order Sharp parts is Tritronics.

You can also call them at 866-779-5835.


If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases.

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

Dec 02, 2008 | Microwave Ovens

1 Answer

Microwave oven carousel not working and microwave not coming on, only time is working. Model R-52OL-K. Brought at. LOWE'S Cotati, CA 94931 12-24-2006


We have the 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.

This is usually caused by either a bad door switch, a loose door switch mount (which are pretty simple problems to fix) or occasionally a problem on the control panel.

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.

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.

If you or someone you know 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:.

You can usually find exploded views and order parts by entering your model number here at the Sears parts site. The best place to order Sharp parts is Tritronics.

If you only need a switch, you can order one from us for $5 postpaid.

If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases.

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

Sep 07, 2008 | Sharp Microwave Ovens

1 Answer

Emerson Microwave MW8115SS


there is a thermal fuse inside that is likely blown.
easy to replace just have to google bullet thermal fuse.

May 11, 2008 | Microwave Ovens

3 Answers

Sharp carousel II microwave/convection oven


The question is... Do you want to put money on a 18year MW, or put it towards a new one? I must admit I love the SHARP Combo MW Convection ovens. I own two. One is almost 25years old. The mechanical Timer Type, but they work great and I can maintain them with 30years ef exrerience. I am now retired.
It does sound like the Magnetronhas broken down, however it could be other things in the Secondary (High Voltage Side). The High Voltage Side is made up of the Secondary HV side of the High Voltage Transformer, A High Voltage Diode, a High Voltage Capacitor, and the Magnetron. The High Voltage Side is DANGEROUS, and CAUTION should be taken to protect yourself against EXTREME HIGH VOLTAGE. unplug from power and DISCHARGE High Voltage Capaciton to frame GROUND before touching anything!!!!

Jan 29, 2008 | Microwave Ovens

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