MARUTI SUZUKI Maruti 800 Service Manual page 56

Condition
Cool air won't come out or
insufficient cooling (A/C
system normal operative)
Cool air won't come out
only intermittently
Cool air comes out only at
high speeds
Cool air won't come out
only at high speeds
Insufficient velocity of
cooled air
Possible Cause
Insufficient or excessive charge of
refrigerant
Condenser clogged
Evaporator clogged or frosted
A/C thermistor faulty
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 CONDITIONING (OPTIONAL) 1B-5
Correction
Check charge of refrigerant.
Check system for leaks.
Check condenser.
Check evaporator and A/C thermistor.
Check A/C thermistor.
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.
Check heater control lever assembly.
Check heater unit.
Check blower motor.
Pull out compressor oil in A/C system
circuit, 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 A/C thermistor.
Check evaporator.
Check A/C thermistor.
Repair as necessary.
Check blower motor.
Repair as necessary.