TM-9-2350-277-20-1

CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 6

TM-9-2350-277-20-1 - Page 434 of 855

TM 9-2350-277-20-1

PERSONNEL HEATER MALFUNCTIONS — Continued

0086 00

DY

1.

Remove heater control box (WP 0701 00).

2.

Check continuity between lead ends, from circuit breaker

terminal 17 (1) and ON/OFF/START switch terminal 15 (2).

3.

Does multimeter read 0 ohms?

DYN

1.

Repair faulty lead (WP 0382 00).

2.

Verify no faults found.

D2Y

1.

Check continuity between lead ends from ON/OFF/START

switch terminals 21 (1) and 14 (2).

2.

Does multimeter read 0 ohms?

D2YN

1.

Repair heater switch jumper lead

between terminal 21 and 14

(WP 0382 00).

2.

Verify no faults found.

D3Y

1.

Replace heater ON/OFF/START switch (WP 0702 00).

2.

Verify no faults found.

008600-7

Change 5