ARCTIC HEATER DOES NOT OPERATE (MODEL B)-continued

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

Table 2-9.

Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

ARCTIC HEATER KIT

7. ARCTIC HEATER DOES NOT OPERATE (MODEL B) (CONT).

Step 10.

Check voltage on yellow wire at arctic heater harness connector. Place positive (+) probe

at terminal A1. Place negative (--) probe at terminal C3. Turn arctic heater switch on.

If 24 vdc is present, the arctic heater control unit is faulty, notify the supervisor.

If 24 vdc is not present, repair or replace arctic heater harness yellow wire (para

20-3).

Step 11.

If problem has not been solved, notify the supervisor.

Change 7

2-263