Visual inspection of the drained refrigerant oil from the air conditioning compressor

• Drain refrigerant oil from the faulty air conditioning compressor into a clean bucket via the oil drain plug.

Check 

• Complete a visual inspection of the drained refrigerant oil from the faulty air conditioning compressor.

Result 

» No shavings  in the refrigerant oil

Measure

• Do not flush  the refrigerant circuit.

Result 

» Shavings  in the refrigerant oil

Measure

• Flush  the refrigerant circuit.