Table 4-2. TROUBLESHOOTING - TM-5-4120-383-140079

TM5-4120-383-14

4-8.

USE OF TROUBLESHOOTING TABLE.-Continued

The technicians should first find the malfunction symptom or

unsatisfactory performance characteristic in the table which most

closely describes the immediate situation; then perform the test

and inspections, and corrective action steps in the order in which

they are listed.

c. This manual cannot list all possible situations which may be

encountered, nor can it list all test and inspection, and

If a condition is

corrective action steps which may be taken.

encountered which cannot be resolved within the capabilities and

experience of organizational maintenance personnel assistance

should be requested from direct support maintenance.

TROUBLESHOOTING

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

AIR CONDITIONER DOES NOT START IN ANY MODE.

Step 1.

Check if circuit breakers are tripped.

Reset circuit breakers.

Step 2.

Check if input power has been disconnected.

Connect input power.

Disconnect input power before performing

internal electrical troubleshooting. Voltages

used can be lethal.

If input power has been disconnected for an

unknown period of time, do not start in COOL

MODE until power has been reconnected for a

minimum of four hours.

Step 3.

Check for loose or damaged electrical connectors or

damaged wires in wiring harnesses.