Heating and Air Conditioning: Service and Repair

Periodic Maintenance

Routine servicing, apart from visual checks, is not necessary The visual inspections are as follows:

Condenser
With a water hose or air line, clean the tins of the condenser to remove flies, leaves, etc. Check the pipe connections for signs of oil leakage.

Compressor
Check pipe connections for signs of oil leakage.
Check flexible hoses for swelling. Examine the compressor belt for tightness and condition.

Sight glass and Receiver/Drier
Examine the sight glass for bubbles with the system operating. Check connections for leakage.

Evaporator
Examine the refrigeration connections at the unit. If the system should develop a fault, or if erratic operation is noticed, See Fault diagnosis, Refrigeration System Faults. Refrigeration System Fault Symptoms