Myles T Moulton , AL July 17, 2016 Appliance: Frigidaire FRA256SV218 Frigidaire Air Conditioner Fra256sv218 / : The compressor ran constantly even with the power turned off. How to replace Electronic Control Board (Main Console). A quick Google search convinced me that the relay for the compressor had gone bad. This required replacing the whole main control board. Ordered parts at 2300 on a Monday and had the new parts and a working air conditioner on Wednesday. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes