Insufficient Cooling

Insufficient Cooling

Symptom #2


Condition(s): NOTE: Should a leak or low refrigerant be established as the cause of INSUFFICIENT COOLING, follow the procedures Recovery / Recycle / Recharge, this section, and observe all refrigerant and oil handling instructions.


insufficient cooling
Possible Source(s):
- Compressor clutch slipping

Action(s) to take:
- Renew clutch assembly

Possible Source(s):
- Flaps or vents closed / seized

Action(s) to take:
- Check fault codes #41 to 46 Trouble Code Listed By System

Possible Source(s):
- Blower circuit fault

Action(s) to take:
- Refer to PDU

Possible Source(s):
- Blocked condenser matrix / fins

Action(s) to take
- Check high / low side pressures / renew. Check / clean fins

Possible Source(s):
- Blocked evaporator matrix

Action(s) to take:
- Check high / low side pressures / renew

Possible Source(s):
- Blocked pollen filter (if fitted)

Action(s) to take:
- Clean or renew

Possible Source(s):
- Evaporator temperature sensor faulty

Action(s) to take:
- Refer to PDU

Possible Source(s):
- Partial loss of refrigerant caused by leaking joint or pipe

Action(s) to take:
- Repair / renew

Possible Source(s):
- Blocked expansion valve

Action(s) to take:
- Check high / low side pressures / renew

Possible Source(s):
- Expansion valve fault

Action(s) to take:
- Check system pressure differential

Possible Source(s):
- Collapsed air conditioning hose hose

Action(s) to take
- Check high/low side pressures / renew

Possible Source(s):
- Moisture or air in the system

Action(s) to take:
- Check system pressures

Possible Source(s):
- Low refrigerant charge

Action(s) to take:
- Initiate recovery procedure, check fault code #23 Trouble Code Listed By System

Possible Source(s):
- Coolant flow valve open

Action(s) to take:
- Check operation