Suzuki RA410, Manual

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AIR CONDITIONING (OPTIONAL) 1B-5
Condition Possible Cause Correction
Cool air does not come out
or insufficient cooling (A/C
system normal operative)
Compressor faulty
Air in A/C system
Air leaking from cooling unit or air duct
Heater and ventilation system faulty
Blower motor faulty
Excessive compressor oil existing in
A/C system
Check compressor.
Replace receiver/dryer, and evacua-
tion and charging.
Repair as necessary.
Check air inlet box.
Check heater control lever assembly.
Check heater unit.
Check blower motor.
Pull out compressor oil in A/C system
circuit, and replace compressor.
Cool air does not comes
out only intermittently
Wiring connection faulty
Expansion valve faulty
Excessive moisture in A/C system
Magnetic clutch faulty
Compressor thermal protector faulty
Excessive charge of refrigerant
Repair as necessary.
Check expansion valve.
Replace receiver/dryer, and evacua-
tion and charging.
Check magnetic clutch.
Check compressor thermal protector.
Check charge of refrigerant.
Cool air comes out only at
high speeds
Condenser clogged
Insufficient charge of refrigerant
Air in A/C system
Drive belt slipping
Compressor faulty
Check condenser.
Check charge of refrigerant.
Replace receiver/dryer, and evacua-
tion and charging.
Check or replace drive belt.
Check compressor.
Cool air does not come out
only at high speeds
Excessive charge of refrigerant
Evaporator frosted
Check charge refrigerant.
Check evaporator.
Check A/C thermistor.
Insufficient velocity of
cooled air
Evaporator clogged or frosted
Air leaking from cooling unit or air duct
Blower motor faulty
Wiring or grounding faulty
Check evaporator.
Check A/C thermistor.
Repair as necessary.
Check blower motor.
Repair as necessary.