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 578 of 855

TM 9-2350-277-20-1

INVERTER POWER-UP FAILURE (M1068A3 ONLY)

0109 01

INITIAL SETUP:

Maintenance Level

Unit

Personnel Required

Mechanic

References

TM 9-2350-277-10

Equipment Condition

Engine stopped (TM 9-2350-277-10)

Carrier blocked (TM 9-2350-277-10)

Inverter control switch in the OFF position

NOTE

During power-up, the only indication the inverters are on is the sound of their turbo fans.

T

1.

Turn OFF all AC and DC circuit breakers. See TM

9-2350-277-10.

2.

Turn MASTER switch ON. See TM 9-2350-277-10.

3.

Turn INVERTER CONTROL switch to Primary A.

4.

Is inverter control LED A ON?

TN

1.

Faulty inverter A. Beyond unit

maintenance repair.

2.

Notify supervisor.

Y

1.

Is inverter control lamp B off?

2YN

1.

Verify no faults found.

2Y

1.

Turn INVERTER CONTROL switch to Primary B.

2.

Are inverter control lamps A and B off?

3YN

1.

Verify no faults found.

3Y

1.

Faulty inverter B. Beyond unit maintenance repair.

2.

Notify supervisor.

Change 5

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