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Fan Speed does not change when switched from low to Med to Hi

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Possible that the regulating system is not functioning. If the set is old type the windings or switch connecction is faulty or if new type the electronic speed control cicuit is faulty.. possible fault in the thyristor speed control.

Posted on Aug 30, 2010

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  • Master
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In many models, the low, medium, and high refer to the cooling coils instead of fan speed. I do not know your model, so there may be an issue with your fan switch. Happy to try to help more if you add your make and model.
Regards, Farmerbear

Posted on Aug 30, 2010

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