Daewoo Solar 300LC-V, Manual

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S0605060K
Page 14 Air-Conditioner
TROUBLESHOOTING
Refrigerant Pressure Check
1. Open all doors and windows.
2. Install manifold gauge set.
3. Start engine and maintain engine speed at 1,800 - 2,000 RPM.
4. Check high / low pressure of refrigerant.
1
High Pressure: 8.0 - 10.0 kg/cm
2
(114 - 142 psi)
Low Pressure: Approximately 1.0 kg/cm
2
(14 psi)
Possible Cause: Low Refrigerant Level
Step Inspection Item Remedy
1 Check for traces of refrigerant oil.
Yes
Reassemble using correct
tightening torque.
No Go to next step.
2
Using a leak detection device or soapy water
check for refrigerant leakage at all major
components and joints. Yes Repair leaking component.
No Recharge system to correct
pressure.
2
High Pressure: Over 23 kg/cm
2
(327 psi)
Low Pressure: Approximately 2.5 - 3.0 kg/cm
2
(36 - 43 psi)
Possible Cause: Overcharge, Frost on condenser
Step Inspection Item Remedy
1
Check for condenser pin damage or
contamination.
Yes Clean, repair or replace condenser.
No Refrigerant overcharge.
LO HI
HDA6074L
Figure 14