TM-9-2320-273-10
TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; OPERATOR’S MANUAL
DECEMBER 2012
TM-9-2320-273-10 - Page 296 of 452
AIR CONDITIONING (M915P1, M915A1P1, M916P1, M917P1, and M920P1)
SYMPTOM
A/C unit does not function.
MALFUNCTION
Faulty switch or circuit breaker.
CORRECTIVE ACTION
1. Verify A/C ON/OFF switch is in ON position. Position switch in ON
position.
2. Verify circuit breaker on evaporator assembly is not tripped. Reset
circuit breaker.
3. Notify supervisor to troubleshoot A/C ON/OFF switch or circuit
breaker.
SYMPTOM
A/C unit not producing cool air.
MALFUNCTION
Faulty switch or loose wiring connection.
CORRECTIVE ACTION
1. Verify A/C ON/OFF switch is in ON position. Position switch in ON
position.
2. Verify circuit breaker on evaporator assembly is not tripped. Reset
circuit breaker.
3. Notify supervisor to troubleshoot A/C ON/OFF switch or circuit
breaker.
MALFUNCTION
Evaporator filter dirty or obstructed.
CORRECTIVE ACTION
1. Inspect evaporator assembly filter. Replace filter if dirty or obstructed
(WP 0033).
2. If filter is not obstructed, notify supervisor to troubleshoot A/C system.
TM 9-2320-273-10
0023
0023-22
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