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Home | Sharp | R-1874 850 Watts Convection / Microwave Oven | R-1874 shuts down aft...
Sharp R-1874 850 Watts Convection / Microwave Oven
Problem for Sharp R-1874 850 Watts Convection / Microwave Oven

R-1874 shuts down after 59 seconds




By jaime1948 on Sep 12, 2009

" "
Had tech check and said that the damper motor was bad. I ordered and replaced the motor. The motor does cycle and open and close the damper door, but the unit still shuts down after 59 seconds. What is the purpose of the switch that is next to the motor. Will the motor run if the switch is bad?
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Best Solution

posted on Sep 13, 2009
Very Helpful)

MicrowaveFxr
MicrowaveFxr

Rank: Guru 
Rating: 94%, 24 votes
That switch is supposed to tell the computer if the damper door is open or closed. If it does not go to zero ohms, the CPU doesn't know what to do. Check the thermistor too...... just in case...
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