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Posted on Nov 20, 2007
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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.
thanks

  • lippy344 Nov 23, 2007

    switch internally shorted, it was the bottom switch that was the called a secondary . When you press the button onthe switch you could feel it being bad.. No spring feed back.

    thank you

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1 Answer

Devabhakthuni Venkateswara Rao

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  • Expert 225 Answers
  • Posted on Nov 20, 2007
Devabhakthuni Venkateswara Rao
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Joined: Sep 24, 2007
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Check door switches and control circuit.

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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.

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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.

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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.

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Fan runs when door is closed, but no heat.

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