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 269 of 855

TM 9-2350-277-20-1

LEFT REAR UTILITY OUTLET/BLOWER DOES NOT WORK (M577A3 AND M1068A3

ONLY)—Continued

0043 00

CY

1.

Turn BLOWER SWITCH to OFF.

2.

Remove circuit 59 plug (1) from blower motor jack (2).

3.

Turn BLOWER SWITCH to ON.

4.

Measure voltage between circuit 59 plug (1) and ground.

5.

Does multimeter read less than 17 volts?

YES

NO

CYN

1.

Replace blower motor (WP 0383 00).

2.

Verify no faults found.

C2Y

1.

Turn MASTER SWITCH to OFF.

2.

Install a jumper wire between circuit 59 plug at blower motor and

ground.

3.

Remove eight nuts (1), washers (2), and screws (3) from master

switch panel (4) and distribution box (5). Pull panel away from

distribution box.

4.

Remove circuit 59 plugs (6) from blower switch (7).

5.

Check for continuity between circuit 59 plugs (6).

6.

Does multimeter read 0 ohms?

YES

NO

C2YN

1.

Replace blower switch

(WP 0278 00).

2.

Install master switch panel on

distribution box.

3.

Verify no faults found.

0043 00-4