Question about Sharp R-1490 Microwave Oven

1 Answer

Sharp R1490 when door is open fan runs...

When I open the door of the R-1490 the fan continues to run. I left a cup of previously boiled water to see if the microware was running and it is not. The issue is the fan, also I checked the switches on the door and they are in place. At a loss at what to check next.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 200 questions.

  • Expert
  • 224 Answers
Re: Sharp R1490 when door is open fan runs... - Sharp R-1490 Microwave Oven Microwave Ovens

Check door switches and control circuit.

Posted on Nov 20, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

2 Answers

My microwave will not shut off. Doesnit have a reset swith

please unplug it and get it to a tech. Sounds like he timer is shot and could be dangerous.

Jul 08, 2015 | Sharp Carousel Microwave Ovens

1 Answer

Why does the fan on my Sharp Carosel II microwave continue to run? Model R-8560

From the description one of the door switches is defective, if you have a digital meter then I will walk you through the testing phase.

Jul 06, 2012 | Sharp Microwave Ovens

1 Answer

A plastic container with hidden piece of metal caught fire in my Sharp r1490 and burned with a big flame. Several small holes were burned in the ceiling panel. Are we in danger of radiation exposure/ is...

The microwave oven is not safe to use, the fire has compromised the interior of the oven, if you run the microwave it will start to arc and eventually short out the magnetron, because the white enamel paint has been burned away. If you have holes in the ceiling there is danger of radiation leakage, for safety reasons the oven should be replaced.

Feb 23, 2011 | Sharp R-1490 Microwave Oven

2 Answers


I just search the way the micowave was put together and I found out how to open the side on the door to get to the latch after I open the door I don,t think the latch is the problem the hook for the spring is broken so I think I will replace the door

Feb 19, 2009 | Sharp R-1490 Microwave Oven

1 Answer

R-1490 fan doesn't run or unit doesn't heat

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

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 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.

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 17, 2008 | Sharp R-1490 Microwave Oven

2 Answers

I need to replace my maytag mmv5000 microwave door assembly

Normally you have to separate the door panels (as shown in the attached photo) and then you'll see the previously hidden screws you need to remove.

Or you can watch a YouTube video (not a video I made) that demonstrates how it's done.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

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


Sep 18, 2008 | Maytag MMV5000 Microwave Oven

1 Answer

Fans continues to run.

door switches or control circuit, may be loose contact or open check all wiring and circuit...

Dec 18, 2007 | Sharp R-1470 Microwave Oven

1 Answer

Fan runs when door is closed, but no heat.

It's probably a bad door switch or switch mount. 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: Feel free to contact me directly if you have further questions. I appreciate your thoughtful rating of my reply.

Jun 20, 2007 | Sharp R-1490 Microwave Oven

1 Answer

Fan runs when door is closed - no heat

This is normally 1 of the interlock door micro-switches not working.

Jun 20, 2007 | Sharp R-1490 Microwave Oven

Not finding what you are looking for?
Sharp R-1490 Microwave Oven Logo

Related Topics:

205 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sharp Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8795 Answers


Level 2 Expert

224 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

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

Answer questions

Manuals & User Guides