78 System frozen and not free in time - Defreezing Mode and Detection Errors (pressure line defreezing failed) - P20BE Reagent - pressure tube heating Detection mode of heating
System frozen and not free in time - Defreezing Mode and Detection Errors (pressure line defreezing failed) - P20BE Reagent -pressure tube heating -detection mode of heating
Hissing noise at expansion valve, Loss of refrigerant.Restriction in refrigerant system.Check receiver-dryer for uniformity of temperature.