Low pressure switch open for cumulative 60 seconds (no consecutive requirement)
Decelerator (STD cab) Position potentiometer voltage is too low
Master clutch is not calibrated
Aux 3rd Raise solenoid failed open or short circuit.
Low pressure switch open for > 1 minute
Master clutch is not calibrated
If Failure to cool in electrical system, Compressor clutch not engaging.Expansion valve not functioning. Restriction in refrigerant system. See your John Deere dealer.Faulty wiring or loose connections.Defective temperature control switch.Outside temperature too low, below 21gets warmer.Condenser is overheating. Clean condenser screens, cores and fins of condenser and radiator.