I have a Rudd Silhouette II Gas Furnace. Model # RCBA-3765AS17. The blower will not shut off and runs 24/7. Even if I turn the thermostat off, the blower continues to run. The compressors outside still cycles on and off like normal. I have tried replacing the thermostat and nothing changed. The only way to get the blower to shut off is to turn the breaker off at the power panel.