Testing and Inspecting The Electrical System

TM 9-4120-425-14&P

UNIT MAINTENANCE

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MECHANICAL REPAIRS AND ELECTRICAL REPAIRS - Continued

Testing and Inspecting The Electrical System

WARNING

Disconnect air conditioner power supply.

Troubleshooting procedures for testing the electrical system to isolate causes of trouble are discussed in WP 0014-00.

More detailed test information is contained in specific paragraphs about the electrical components.

Use a multimeter set on low-resistance range to test for continuity.

Use an insulation tester or a multimeter set on a high-resistance range to test for short circuits between the circuit in a

component and the outside casing of the component.

When testing an electrical component, check for visible damage, and inspect all wiring in the area for damage,

overheating or loose connections.

END OF TASK

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