07-26-2025, 02:34 PM
It is not hard to get the fan working on 2 speeds, all you need is a normally closed and open 24 volt relay with the contacts rated at 2 to 3 times the fla of the fan motor, put the wire that is giving the fan power now on the common terminal I would put the high fan motor wire on the normally open contact put the low fan wire on the normally closed contact. put the 24 volt common on 1 side of the coil put a wire from power side of the 2nd compressor to the other side of the coil, that will switch it to high fan when the 2nd compressor turns on
John Kosir
712 2004 45-8

