TM 9-4120-405-13&P
Table 3-1. Operator Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
AIR CONDITIONER
1.
AIR CONDITIONER WILL NOT START IN ANY MODE.
Step 1. Check that input power has not been disconnected.
Connect input power.
CAUTION
During cool weather do not start in COOL mode for 4 hours.
Damage to the
equipment may result if personnel fail to observe precaution.
Step 2. Check If CONTROL CIRCUIT BREAKER or COMPRESSOR CIRCUIT BREAKER has tripped.
Reset circuit breaker(s).
Step 3. Check if generator-set CIRCUIT BREAKER has tripped.
Reset circuit breaker.
2.
REDUCED COLLING CAPACITY.
Step 1. Check that MODE SELECTOR switch is turned to COOL.
Turn to COOL.
Step 2. Check operation of TEMPERATURE SELECTOR.
Set control at maximum COOLER, then, if condition improves, adjust properly.
Step 3. Check that supply and return air louvers in shelter are properly adjusted.
Adjust louvers properly.
Step 4. Check that all doors, windows, and other openings in room are tightly closed.
Tightly close all openings.
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