Question about Sharp Ovens

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Sharp R-9H84B oven temperature not high enough if I set the oven at 400 it will beep when it comes to preheat temp but when it beeps it is on at right temp. it seems to cool.

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  • Kevin Hempen May 03, 2017

    I am going to take it apart again tomorrow and I will check to see how many elements it has and if they are ok. I have changed the thermister but will check it again also. I do not quite know where it gets its logic as to the temperature. you talk of a control switch can you elaborate on this? it is a Sharp R-9H84B convection microwave. The microwave works fine it is the convection oven part having this trouble.
    Thank Kevin

  • Kevin Hempen May 04, 2017

    Stan,
    I found that the circulating fan was not spinning. I think that it is possible with out the air moving the heat road the over load out and the oven just could not do what it is intended. The bering on the fan needs replacing ands i could use a new belt.
    I have been able to run it threw a partial test but I need a better thermometer first, but I think I am on track.
    Kevin

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Check with another gauge, if faulty some of the elements maybe out or the control switch may have a fault.

Posted on May 03, 2017

Testimonial: "I am going to take it apart again tomorrow and I will check to see how many elements it has and if they are ok. I have changed the thermister but will check it again also. I do not quite know where it gets its logic as to the temperature. you talk of a control switch can you elaborate on this? it is a Sharp R-9H84B convection microwave. The microwave works fine it is the convection oven part having this trouble. Thank Kevin"

  • Stan Ford May 03, 2017

    The switch controls witch elements are in use if the contacts are burnt the element will not come on.could be switch or element.

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