No/Inefficient Cooling

Fault symptom
Compressor clutch draws power, but the cooling capacity of the system seems insufficient.

Diagnostic help
Conditions according to the following:
- Outside temperature >1 °C.
- Cooling fans functioning.
- Air flows freely through condenser.
- No temperature difference between receiver inlet and outlet.
- Pressure on the low-pressure side is normal 1.5-2.5 bar.
- Pressure on the high-pressure side depends on the load put on the system.