UNIT WIRING MAINTENANCE

TM 9-4120-430-14

0031 00

UNIT MAINTENANCE

AIR CONDITIONER, COMPACT, HORIZONTAL

UNIT WIRING MAINTENANCE

INSPECTION, TEST, REMOVAL, REPAIR, AND INSTALLATION

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanics (Item 1, Table 2, WP 0067 00)

Soldering Gun Kit (Item 9, WP 0067 00)

Heat Gun (Item 6, WP 0067 00)

Test Equipment

Multimeter

Materials/Parts

Solder (Item 2, WP 0069 00)

Flux (Item 15, WP 0069 00)

References

Wire list and schematic diagram (WP0038 00)

Personnel Required

One

Equipment Condition

Power disconnected from unit.

Top cover removed (WP 0018 00).

Evaporator air intake louver removed (WP 0020 00).

Junction box partially removed from unit (WP 0028 00).

Circuit Breaker assembly removed (WP 0027 00).

WARNING

Ensure power source is disconnected.

INSPECTION

1. Inspect all installed wiring for cracked or frayed insulation. Pay particular attention to wires routed around sharp

edges.

2. Repair or replace bad wiring.

3. Inspect electrical input power connectors (J2 and J1 ALTERNATE) for damage. Inspect electrical connector J3 for

damage.

4. Replace damaged connectors.

TEST

1. Test for continuity on wiring.

2. Touch the test probes of a multimeter set on low-resistance range to ends of wire and/or corresponding pin of

connector.

0031 00-1