Case 1: Insufficient Refrigerant
Measured pressureLow-pressure side: 8.5-14.2 psi (58.9-98.1 kPa, 0.6-1.0 kg/Sq.cm)
High-pressure side: 119-136 psi (824-942 kPa, 8.4-9.6 kg/Sq.cm)
Condition
Outlet air from vents not cold.
Step 1
1. Check for oil stains on pipes, hoses and other parts.
2. If oil staining is found at connection of pipes or hoses, replace O-ring; then, evacuate, charge, and test system. Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper procedures.
3. If oil staining is not found, go to Step 2.
Step 2
1. Check for leakage from following connection with a gas leak tester.
a. Inlet and outlet of condenser
b. Inlet and outlet of receiver/drier
c. Inlet and outlet of compressor
d. Inlet and outlet of cooling unit
2. If leakage is evident, go to Step 3.
3. If leakage cannot be found, evacuate, charge and test system. Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper procedures.
Step 3
1. Check tightening torque of connection where leak was detected.
2. If connection is loose, tighten connection to specified torque; then evacuate, charge, and test system. Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper procedures.
3. If connection is properly tightened, replace O-ring; then evacuate, charge, and test system. Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper procedures.