e10944 Error Code For Case Tractor Models

There are 3589 kind of error description.

Description:

57 Reverting valve (4-2way valve?) electrically - Open load - P20A0 Vent valve (Reductant Purge Control Valve) Open circuit

Hissing noise at expansion valve, Loss of refrigerant.Restriction in refrigerant system.Check receiver-dryer for uniformity of temperature.