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 7.

Remove left heater compartment cover (para 16-11). Check voltage on red/yellow wire at

arctic heater switch. Place positive (+) probe on red/yellow wire at arctic heater switch.

Place negative (--) probe on known good ground.

If 24 vdc is present, go to Step 9.

Step 8.

Remove arctic heater switch fuse (para 20-3). Perform continuity check on fuse.

If continuity is present, repair or replace arctic heater harness red/yellow wire

(para 20-3).

If continuity is not present, replace arctic heater switch fuse (para 20-3).

Change 7

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