Hello, I have a Tempstart Heater that will not turn the blower off after I turn it on from the thermostat. The fan still run even when I swith off, just cold air. The only way to shut it off is to open up the heater panel and reset the button inside the heater. It was working for the first couple of years when I bought the house. I don't think it's the vent issue. I suspected it could be a relay. Please help direct me how to replace this is the problem. Thanks in advance.
kevin