Hi newbie here, I have a Harman PF100 that was installed in 2009. I recently ran into some problems with it and wound up replacing the combustion blower motor and the control board. The furnace is now working but it is running way to hot. If I set the thermostat below 75 degrees, the furnace shuts off. If I set it at 75 degrees it’s winds up being 80 degrees in the house. So my options are 80 degrees or no heat. Settings are “normal” and “4”. Anyone have any ideas on how to correct this issue?
Harman PF 100 running to hot
- Thread starter Forester11
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