REFRIGERANT SYSTEM CONTINUOUSLY LOSING REFRIGERANT

TM 9-4120-428-14

0012 00

The pressure regulator valve is defective .

CORRECTIVE ACTION

Check the pressure regulator valve and replace if defective. (WP 0081 00).

The primary expansion valve is not operating properly.

CORRECTIVE ACTION

Check the primary expansion valve for proper operation and replace if defective.

The quench valve is not operating properly.

CORRECTIVE ACTION

Check the quench valve for proper operation and replace if defective. (WP 0078

TROUBLESHOOTING PROCEDURE

REFRIGERANT SYSTEM CONTINUOUSLY LOSING REFRIGERANT

SYMPTOM

The air conditioner is continuously losing refrigerant.

MALFUNCTION

The refrigerant tubing and its components show signs of leaking.

CORRECTIVE ACTION

WARNING

Unit contains R-22, a chemical substance that harms public health and the environment

by destroying ozone in the upper atmosphere.

CAUTION

Qualified personnel should service the equipment.

1. Check the refrigerant tubing and its components for leaks using a leak detector; repair or

replace defective parts as necessary. (WP 0091 00).

2. Check the pressure relief valve and replace if defective. (WP 0086 00).

TROUBLESHOOTING PROCEDURE

UNIT OPERATES CONTINUOUSLY ON COOL

SYMPTOM

The unit continuously operates on cool.

MALFUNCTION

Solenoid valve L1 is defective.

CORRECTIVE ACTION

Check solenoid valve L1 and replace if defective . (WP 0079 00).

0012 00-3