Question about Sharp R-1874 Convection/Microwave Oven
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 them 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.
Posted on Jan 02, 2011
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Posted on Jan 02, 2017
Yes the timer is prob the culprit. You probably had a brown out that caused the whole thing to go haywire.
Posted on Sep 21, 2007
Tips for a great answer:
Sep 14, 2015 | Microwave Ovens
Oct 03, 2013 | Danby DMW139 Microwave Oven
the "Stop" button on the microwave to
reset the digital display to the clock setting.
2) Push the
"Clock" button once. Locate the "Hour" button and
press it once for each hour of time. For example, if the current time
is 5:15 p.m., press the Hour button five times.
the "Minute" button to set the second half of the time. For
the example above, you would press the Minute button 15 times to set
a time of 5:15 p.m.
4)Push the Clock button to save the time setting. Check the time on the microwave's digital display.
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