Suzuki Wagon R Manual page 3626

Condition
Cool air does not
come out or insuffi-
cient cooling (A/C sys-
tem normal operative)
Cool air does not
comes out only inter-
mittently
Cool air comes out
only at high speeds
Cool air does not
come out only at high
speeds
Insufficient velocity of
cooled air
Diagnosis Test
Refer to the same section of the Service Manual mentioned in the "FOREWORD" of this service manual.
Possible Cause
• Insufficient or excessive charge of
refrigerant
• Condenser clogged
• Evaporator clogged or frosted
• Expansion valve faulty
• Receiver / dryer clogged
• Drive belt slipping
• Magnetic clutch faulty
• 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
• Wiring connection faulty
• Expansion valve faulty
• Excessive moisture in A/C system
• Magnetic clutch faulty
• Excessive charge of refrigerant
• Condenser clogged
• Insufficient charge of refrigerant
• Air in A/C system
• Drive belt slipping
• Compressor faulty
• Excessive charge of refrigerant
• Evaporator frosted
• Evaporator clogged or frosted
• Air leaking from cooling unit or air
duct
• Blower motor faulty
• Wiring or grounding faulty
• Air filter element clogged
AIR CONDITIONING (OPTIONAL) 1B-7
Correction
Check charge of refrigerant.
Check system for leaks.
Check condenser.
Check evaporator and position of A/C ther-
mistor.
Check expansion valve.
Check receiver / dryer.
Check or replace drive belt.
Check magnetic clutch.
Check compressor.
Replace receiver / dryer, and evacuation
and charging.
Repair as necessary.
Check air inlet box assembly.
Check heater control lever assembly.
Check heater assembly.
Check blower motor.
Pull out compressor oil in A/C system cir-
cuit, and replace compressor.
Repair as necessary.
Check expansion valve.
Replace receiver / dryer, and evacuation
and charging.
Check magnetic clutch.
Check charge of refrigerant.
Check condenser.
Check charge of refrigerant.
Replace receiver / dryer, and evacuation
and charging.
Check or replace drive belt.
Check compressor.
Check charge refrigerant.
Check evaporator.
Check evaporator.
Repair as necessary.
Check blower motor.
Repair as necessary.
Check air filter element.