If this is the auto set version, is it under warranty? Less than 3 years old? If so take it to a shop and fix should be free. Otherwise, the fan motor is also a transformer, which puts out 24 vac to run the board. So could be fan motor or the board itself.
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If this is the auto set version, is it under warranty? Less than 3 years old? If so take it to a shop and fix should be free. Otherwise, the fan motor is also a transformer, which puts out 24 vac to run the board. So could be fan motor or the board itself.