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TM 5-4120-377-14
Section II TROUBLESHOOTING PROCEDURES
3-2.
USE OF TABLE
Table 3-1 contains troubleshooting instructions designed to be useful in diagnosing and correcting
unsatisfactory operation or failure of the air conditioner.
a. The table lists the common malfunctions which you may find during the operation or maintenance of the
air conditioner or its components. You should perform the tests/inspections and corrective actions in the order
listed.
b. This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective
actions. If a malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
c. Any trouble or corrective action beyond the scope of operator maintenance shall be reported to
organizational maintenance.
TABLE 3-1. TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. AIR CONDITIONER DOES NOT START IN ANY MODE.
Step 1. Check to see if input power has been disconnected.
Connect input power.
Step 2. Check to see if compressor circuit breaker is tripped.
Slowly PULL out AND PUSH in reset knob TO RESET CIRCUIT BREAKER.
T S 4 1 2 0 - 3 7 7 - 1 4 / 3 - T 3 1 - 1
NOTE
If circuit breakers continue to trip, contact organizational maintenance.
3-2
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