8.2.7.8 Insufficient Cooling

Malfunction Symptom Table

Symptoms

Suspected Malfunction Components

Repair Procedure

Engine coolant
temperature is too high

1. Engine runs at idle for too long.

2. Engine runs with heavy load for too long.

3. Lack of engine coolant

4. Engine coolant performance does not meet

the requirements

5. Thermostat Malfunction

6. Engine Malfunction

7. Cooling fan is running exception

8. Cooling fan does not work properly

9. Radiator Malfunction

10. Cooling fan cover is damaged

1. Reduce the engine idle running time.

2. Reduce the engine running time under heavy load.

3. Inspect for engine coolant leakage, add the engine

coolant to the standard amount.

4. Replace the engine coolant with coolant comply with

Geely requirements.

5. Replace the thermostat.

6. Inspect the engine cooling system.

7. Inspect the engine working condition.

8. Inspect the cooling fan motor and its circuit, if

necessary, replace it.

9. Clean the coolant reservoir.

10. Inspect the coolant reservoir, if necessary, replace

it.

11. Inspect the cooling fan cover, if necessary, replace

it.

Condenser temperature
is too high

1. Poor condenser radiation

2. The engine coolant temperature is too high.

1. Clean the condenser.

2. Inspect the condenser, if necessary, replace it.

3. Repair according to "the engine coolant

temperature is too high," symptom in this table.

Compressor Operation
Abnormal

1. Compressor belt slipping

2. Compressor clutch slipping

3. Compressor abnormal sound

4. Frequent compressor start

5. Compressor inoperative

1. Adjust the compressor belt, if necessary, replace it.

2. Inspect the compressor clutch, if necessary, replace

it.

3. Check refrigerant, lubricant quantity. Refer to "air-

conditioning system pressure abnormal" symptom
in this table.

4. Inspect the compressor clutch circuit.

5. Inspect the compressor, if necessary, replace it.

6. Inspect the air-conditioning pressure switch, if

necessary, replace it.

7. Inspect the air-conditioning control module, if

necessary, replace it.

8. Inspect the engine control module, if necessary,

replace it.

Heating, Ventilation and A/C System

Automatic Air-conditioning

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Symptoms

Suspected Malfunction Components

Repair Procedure

Instrument Air Duct Air
Flow Too Small

1. Instrument air duct blocked

2. Instrument air duct leakage

3. Air direction control mechanism abnormal

4. Air direction control motor abnormal

5. Blower speed too low

6. Blower Speed Control Module abnormal

7. Air-conditioning pipes frozen

8. Air-conditioning control module abnormal

1. Clean the instrument air duct, if necessary, replace

it.

2. Inspect the Instrument air duct, if necessary, replace

it.

3. Inspect the air direction control mechanism

4. Inspect the air direction control motor.

5. Inspect the circuits.

6. Repair the blower motor, if necessary, replace it.

7. Replace the blower speed control module.

8. Replace the old refrigerant with the refrigerant

comply with Geely standard.

9. Replace the expansion valve.

10. Inspect the air-conditioning control module circuits,

if necessary, replace the module.

Instrument air duct air
temperature is too high

1. Switched to the outside circulation

2. The ambient temperature is too high

3. Outside circulation valve catching or not

closed

4. Inside circulation motor malfunction

5. Temperature control mechanism abnormal

6. Temperature control motor abnormal

7. Ambient and sun light temperature sensor

abnormal

8. Air-conditioning control module abnormal

1. Switch to the inside circulation.

2. Move the vehicle to a cool place.

3. Adjust the outside circulation valve, if necessary,

replace it.

4. Replace the inside and outside circulation regulation

motor.

5. Inspect the temperature control motor, if necessary,

replace it.

6. Inspect the ambient and sun light temperature

sensor, if necessary, replace it.

7. Inspect the air-conditioning control module circuits,

if necessary, replace it.

Air-conditioning high
pressure too high, low
pressure too high

1. Air entering the cooling system

2. Refrigerant overfill

3. Refrigerant lubricant overfill

4. Expansion valve opening too wide

1. Inspect the cooling system ducts airtight, re-fill

refrigerant.

2. Excessive discharge refrigerant.

3. Excessive discharge refrigerant lubricant.

4. Replace the expansion valve.

Air-conditioning high
pressure too high, low
pressure too low

1. High-pressure pipe before the expansion

valve blocked

2. Expansion valve blocked

3. The expansion valve opening too small

1. Clean or replace the blocked high pressure pipes.

2. Replace the expansion valve.

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Automatic Air-conditioning

Heating, Ventilation and A/C System

Symptoms

Suspected Malfunction Components

Repair Procedure

Air-conditioning high
pressure too low, low
pressure too high

1. Lack of compressor oil

2. Compressor damaged

1. Add compressor refrigerant lubricant.

2. Replace the compressor.

Air-conditioning high
pressure too low, low
pressure too low

1. Insufficient refrigerant

2. Refrigerant Leakage

1. Fill refrigerant according to Geely standard.

2. Inspect the air-conditioning systems leakage,

replace the leaking air-conditioning system
components.

Air-conditioning high
pressure too low, low
pressure close to
vacuum

1. Seriously expansion valve blockage

2. Expansion valve blocked by ice

3. Evaporator temperature sensor malfunction

4. Low pressure pipe leakage

1. Replace the expansion valve.

2. Extend the system vacuuming time, fill air-

conditioning refrigerant according to Geely
standard.

3. Replace the reservoir dryer.

4. Replace the evaporator temperature sensor.

5. Clean or replace blocked low pressure pipes.

8.2.7.9 Insufficient Heating

Fault Symptom Table

Symptoms

Suspected Malfunction Components

Repair Procedure

The engine coolant
temperature does not reach
82°C (180 ºF)

1. Thermostat Malfunction

2. The engine running time is not long

enough.

3. Air entering the cooling system

4. Poor engine working conditions.

1. Extend the engine running time.

2. Bleed the air in the cooling system.

3. Replace the thermostat.

4. Inspect the engine working conditions.

Warm and Cold Air Leakage

1. Throttle body heating and cooling

mechanical malfunction

2. Warm and cold air motor malfunction

3. Air duct leakage

4. Air-conditioning control module

malfunction

1. Adjust the throttle body heating and cooling

mechanism.

2. Replace the heating and cooling regulation motor.

3. Replace the throttle body heating and cooling

mechanism.

4. Repair the leaking air duct.

5. Replace the leaking air duct.

6. Replace the air-conditioning control module.

Heating, Ventilation and A/C System

Automatic Air-conditioning

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Inside and Outside
Circulation Valve Leakage

1. Switch to outside circulation.

2. Outside circulation closing valve

catching or not closed.

3. Inside and outside circulation motor

malfunction

4. Air-conditioning control module

malfunction

1. Switch to the inside circulation.

2. Adjust the outside circulation mechanism.

3. Replace the inside and outside circulation motor.

4. Replace the inside and outside circulation

mechanism.

5. Replace the air-conditioning control module.

8.2.7.10 Air-conditioning Refrigerant Recovery and Filling

Air-conditioning (A/C) system, operating efficiency and service life depend on the the cooling system chemical stability. When the
cooling system is contaminated by foreign matter (such as dust, air or moisture), the pollutants will change the refrigerant and
compressor oil 100 PG stability. and, also affect the relationship between pressure and temperature, reduce work efficiency, and
may lead to abnormal wear of internal components corrosion. Please ensure that the system chemical stability as following:

1. Before open joints, wipe the oil around the joints, reducing the possibility of oil entering into the system.

2. Disconnect the connector, immediately using a cap, plug, or tape to seal joints at both ends to prevent oil, foreign matter and

moisture entering.

3. Keep all the tools clean, dry, including the manifold pressure gage components, and all replacement parts.

4. With clean, dry delivery devices and containers to add 100 PG refrigerant oil, ensure the refrigerant oil is not affected by moisture.

5. During operation, minimize the time the air-conditioning system exposed to air.

6. Empty and fill the air-conditioning system after exposing to air. All repairs must be dried and sealed before leaving the factory.

Only  open  the  sealed  parts  before  the  upcoming  installation.  All  parts  should  be  at  room  temperature  to  prevent  moisture
condensation in the air entering into the system, and re-seal all the parts as soon as possible.

Bleed air-conditioning system, add lubricant, emptying and filling process

Warning!

Refer to "Breathing R-134a Warning" in "Warnings and Notices". Other relevant health and safety information can be
obtained from refrigerant and lubricant manufacturers.

Warning!

Refer to "Protective Goggles and Glove Warning" in "Warnings and Notices".

Filling air-conditioning systems, bleeding, emptying and re-filling process can be done within one connection. During the recovery
and evacuation, refrigerant must be filtered in order to ensure the air-conditioning system refrigerant clean and dry.

1. Do not use R-12 filling machine for filling R-134a system. The two systems refrigerant and refrigerant oil are not compatible and

must not mix, even a small amount is not allowed, mixed with residual refrigerant may damage the equipment.

2. Do not use different-diameter joints in order to ensure airtight within the system.

Filling Machine Installation and Maintenance

There are a lot filling machine types. All filling machines implement air-conditioning system bleeding, refrigerant recovery, system
evacuation, adding refrigerant oil and cooling agent filling tasks. Refer to the filling machine manual, grasp the initial setup and
maintenance procedures.

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