PERSONNEL HEATER CONTROL BOX LIGHT CIRCUIT. (Cont)

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Step 2.

To access personnel heater circuit breaker, remove left C02 cylinder cover.

Refer to page 2-923. Disconnect battery power lead from circuit breaker.

Place red probe in battery power lead. Ground black probe. If multimeter

indicates about 24 volts, go to step 3. If multimeter indicates no voltage,

repair battery power lead. Refer to page 2-371. If problem still exists,

troubleshoot battery power circuit. Refer to page 2-82. Connect lead.

Step 3.

Disconnect lead 401 from 30A circuit breaker. Connect multimeter to 30A

circuit breaker receptacles. If multimeter indicates 0 ohms, go to step 4. If

multimeter indicates infinity, replace 30A circuit breaker. Refer to page

2-590. Connect leads.

2-360