Table 1. Air Conditioning System Troubleshooting Procedures

TM 9-2320-312-24-1

TROUBLESHOOTING PROCEDURES - CONTINUED

0006 00

Table 1. Air Conditioning System Troubleshooting Procedures - Continued.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

a. If leaks are found, notify

3. Quick or Delayed Cycling of AC Compressor.

Loss of refrigerant may be

Maintenance

causing delayed cycling of AC

replace leaking com-

compressor. Perform AC system

ponent(s).

inspection and leak test (WP

0057 00).

b. If no leaks are found,

notify DS Maintenance.

Remove any obstructions.

4. Warm Airflow With Air Conditioner On.

1. Inspect

air

conditioner

condenser

for

airflow

restrictions.

2. Check engine serpentine belt

Replace engine serpentine belt

tension and condition.

as required (WP 0012 00).

3. Perform AC system leak test

a. If leaks are found, notify

(WP 0057 00).

DS Maintenance.

b. Notify DS Maintenance to

inspect, service, and

repair as required air

conditioning system.

4. Inspect system components

If icing is found, notify DS

for icing.

Maintenance.

Replace failed relay.

5. Remove AC compressor

clutch relay, located on air

cleaner mounting bracket.

Use multimeter to test relay

internal circuit.

5. Water Leaking From Heater/AC Unit Inside

Check for plugged drain or drain

Remove obstruction.

Cab.

hose.

0006 00-2