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19741 Error Code For Holt Tractor Models

There are 2 kind of error description.

Description:

D3 Main Relay opens too early / too late - main relay open circuit - P0687 ECM/PCM Power Relay Control Circuit High
Main Relay opens too early / too late - main relay open circuit - P0687 ECM/PCM Power RelayControl Circuit High

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.

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