Question about Sharp R-1480 Microwave Oven

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Micro/convection stops every minute

I have a convec/micro model r1870 and ity stops every minute on the dot why?

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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.

Posted on Nov 21, 2008

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1 Answer

I have a Sharp R1870 micro/convection unit. unit kicks off after 60 seconds. have to restart then kicks off again in 60 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.

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

Please include FULL model number*, FCC ID number*, + detailed symptom information. ( * on the tag in cooking cavity or around door frame or control frame or on back)

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


damper_assy-a2vvqv0uixnfrn102tdmy5ix-4-1.jpg

Mar 04, 2017 | Sharp Microwave Ovens

1 Answer

Sharp microwave r1870 only runs for 59 seconds


If it consistently runs for exactly 59 seconds, and shuts off, it's probably the control panel.

If it runs approximately that length of time, you might have a defective thermal protector on the magnetron, or the magnetron is running too warm for some reason.

Mar 24, 2016 | Sharp R-1870 Convection/Microwave Oven

1 Answer

My Sharp Micro Convection Model R1870 fan behind the touch panel keeps running for 50 seconds after the microwave turns off,. this is not the vent fan. it also runs for 50 seconds when you turn the...


If the fan seems to run even after the microwave had completed the cycle, then it is possible that the drive to the fan is having a time delay. Also it has to be made sure that the magnetron has been cut OFF power or else it is not a good situation. You will have to remove the control panel and check on the board, check the drive to the fan, since the processor cuts off the fan and magnetron at the same time the fan circuit must be traced. Look to the circuit after identifying the fan wiring and back check using a multimter if you are able to trace. If not take help as this can be harmful in case the microwave works till the fan cuts off. A faulty capacitor on the board can create this time delay.

Oct 11, 2011 | Sharp R-1870 Convection/Microwave Oven

2 Answers

My sharp microwave/convection oven come on, clock counts down but it does not heat nor does the turntable turn. About a week ago the breaker was tripped by it I think but it was fine until now. It doesn't...


Hi,

It sounds like one of the door micro switches is bad. There are three micro switches typically. A primary interlock, a secondary interlock and a monitor switch. It is most likely the primary or secondary interlock switch. You may need to take your switches to a professional appliance shop to determine which one is bad.


Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Jan 22, 2011 | Sharp R-930AK Convection/Microwave Oven

1 Answer

My sharp R1870 microwave/convestion oven turns


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
prototech@usa.net
http://www.microwavedisplay.com



damper.jpgdamper.jpg

Apr 26, 2010 | Sharp R-1870 Convection/Microwave Oven

1 Answer

Our microwave/convecton turns itself off after about a 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.

Feb 05, 2009 | Sharp R-1870 Convection/Microwave Oven

1 Answer

The oven/microwave turn off after about a 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.

Feb 05, 2009 | Sharp R-1870 Convection/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 could be jammed.

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.

Many models stop after 59 seconds if there's a problem with the damper saystem.

See the attached sample photo for a typical damper assembly.

We have the applicable service manuals for your Sharp model and have uploaded them to our site here and here to help you.

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

The best place to order Sharp parts is Tritronics. You can also call them at 866-779-5835.

For the Amana, There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

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

The Amana's damper switch is called "interlock switch" and is located at ref# 15 in drawing #5. The damper motor is ref # 22.

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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Nov 29, 2008 | Microwave Ovens

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