having problems with diag. this. i think the unit is stuck in defrost. when i jump orange to white all the fans and comp. come on. i changed the adaptive defrost board twice thinking the new one was defective. on the old AD board if i flick the relay the comp and fans come on. also on the print the defrost t-stat check 240ohms. which it is. now... i dont know if the 240ohms is open or closed.