Furnace Fan Switch Wiring
Read the instructions that came with the thermostat and the furnace.
Furnace fan switch wiring. Specific requirements can change from model. Remove the faceplate and. Due to the possibility of mislabelling and the. Go to the circuit breaker and turn off the power to the furnace.
Hope this helps a few folks out. Honeywell furnace temperature fan limit switch the plastic bushing is designed to protect the wiring from rubbing against any sharp metal that may cause the wiring insulation to fray exposing the wire and going short to ground. Richard lloyd 2 544 649 views. Video of the day step 1.
Ac fan compressor not working how to test repair broken hvac run start capacitor air condition hd duration. Video demonstrating the standard wiring for the primary blower motor found in most furnaces and air handlers in residential hvac. When the device is used both to control a furnace fan on and off as well as serve as a limit switch then all four terminals are used. Wiring the furnace combination fan limit control using the honeywell l4064b as an example.