Geely EC715 2009, Workshop Manual

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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.
8-36 Automatic Air-conditioning Heating, Ventilation and A/C System
EC718/EC718RV EC715/EC715RV 10/2009