S0605050K
Page 14
Air Conditioner
Return to Master Table of Contents
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 - 10 kg/cm
2
(114 - 142 psi)
Low Pressure: Approximately 1 kg/cm
2
(14 psi)
Possible Cause: Low Refrigerant Level
Step Inspection Item Remedy
1 Check for traces of refrigerant oil.
Ye s
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 13
To Next Page
Loading...
