403
AIR
CONDITIONING
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Principal problem Symptom
Possible causes
Abnormal levels of pressure
Low pressure and high pressure too high
Low pressure and high pressure too low
Aircon circuit diagnosis table
Aircon pressure reducer defective
Duct clogged
Aircon compressor seal defective
Aircon evaporator sensor defective
Filtering and drying cartridge obstructed
Lack of aircon fluid in the aircon circuit
Aircon compressor defective
Low pressure too high and high pressure too low
Low pressure too low and high pressure too high
Aircon pressure reducer jammed
Duct clogged
Duct clogged
Aircon pressure reducer jammed
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