Quantcast CREW CAB AIR CONDITIONING DOES NOT OPERATE PROPERLY. (Cont)

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TM 9-2320-279-10-3
Troubleshooting Index (Cont)
Table 3-5.
Troubleshooting
Malfunction
Test or Inspection
Corrective Action
4. CREW CAB AIR CONDITIONER DOES NOT OPERATE PROPERLY
(CONT).
NOTE
Circuit breaker may be in ON position when tripped. To make
sure circuit breaker is not tripped, reset circuit breaker by
switching it to the OFF position then back to ON position.
Step 2.
Check if circuit breakers 12 and 14 are tripped.
If circuit breakers 12 and 14 are tripped, reset circuit
breakers. If circuit breakers trip again, notify
Supervisor.
Step 3. Check if crew cab heater/air conditioner control switch is in the
ON position.
If crew cab heater/air conditioner control switch is not in
the ON position, place switch in the ON position.
Step 4. Check if crew cab heater/air conditioner intake filter is free
from blockage.
If crew cab heater/air conditioner intake filter is blocked,
clear blockage.
Step 5. Check if crew cab air conditioner condenser fan assembly is
free from blockage.
If crew cab air conditioner condenser fan assembly is
blocked, clear blockage.
Step 6. Check if crew cab air conditioner condenser fan power
connectors are connected.
If crew cab air conditioner condenser fan power
connectors are not connected, connect them.
Step 7. Check if crew cab heater fresh air fan assembly is free from
blockage.
If crew cab heater fresh air fan assembly is blocked,
clear blockage.
Step 8. Check if crew cab heater fresh air fan power connector is
connected.
If crew cab heater fresh air fan power connector is not
connected, connect it.
Step 9. If problem still exists, notify Supervisor.
3-7



 


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