AIR CONDITIONER FAILS TO OPERATE. - TM-9-4120-430-140057

TM 9-4120-430-14

0009 00

OPERATOR TROUBLESHOOTING PROCEDURES

AIR CONDITIONER, COMPACT, HORIZONTAL

THIS WORK PACKAGE COVERS:

Air Conditioner Fails to Operate, Insufficient Cooling, No Heat or Low Heat

INITIAL SETUP:

Maintenance Level

Operator

FAULT PROCEDURE 1. AIR CONDITIONER FAILS TO OPERATE.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

AIR CONDITIONER FAILS TO OPERATE.

Step 1.

Verify that power cable is connected to proper voltage and phase with receptacle J2 or J1

ALTERNATE.

Connect power cable to receptacle. See WP 0038 00 schematic diagram.

NOTE

The J2 connector is the main power input connecter. The J1 connector at the back of

the unit is the ALTERNATE input connector. To use the J1 ALTERNATE

connector, the TB1 connections must be shifted from J2 to J1. Refer to CONNECT

POWER SOURCE procedures in WP 0014 00 and to wiring schematic in WP 0038

Step 2.

Verify that internal power connections are for power receptacle being used (J2 or J1 ALTERNATE).

See WP 0040 00 Schematic Diagram for proper power connection for power receptacle being

used.

Step 3.

Check to be sure that circuit breaker is on and the green POWER ON light is lit on the remote

control module.

Reset circuit breaker.

Step 4.

Make sure that mode selector switch is not in OFF position.

Turn selector knob to desired operation.

Step 5.

Check that high pressure switch has been reset.

Wait for the pressure switch to auto reset and for the compressor to start.

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