Hi I have a carrier furnace SXI Model # 58sxb060-cc that has no air conditioner and the blower turns on in the summer for no reason. I removed the thermostat wire on the board and the furnace still turns on. I checked the lights on the board and the red light turns on for about a minute and then the yellow and green lights start flashing randomly and the blower starts running fast and slow
Carrier furnace problems
