Replace OEM Defrost Control Board Install new control board and ensure unit is operating to manufacturer's specifications Non Members: 90 day parts + labor warranty on all repairs Cool home members: 2 year parts + labor warranty on all repairs 1.5 Pole 40A Contactor Includes new contactor with professional installation Inspect wires & spade connectors for overheating & replace as needed Properly secure contactor to unit inside cabinet Non Members: 90 day parts + labor warranty on all repairs Cool home members: 2 year parts + labor warranty on all repairs Also found a break on the y wire while on site. Thermostat wire appears to have had prior repairs done to it. I was able to use 4 remaining existing wires to get the system operating. Switched the thermostat to operate off of batteries. Recommendation, if thermostat wiring continues to give issues, is to replace the entire run with a new 8 bundle run.