DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section I. TROUBLESHOOTING
a. The troubleshooting table (Table 5-1) lists the most common malfunctions which you
may find during the operation or maintenance of the air conditioner. You should perform the
test/inspections and corrective actions in the order listed.
b. For specific malfunctions, perform the troubleshooting procedures listed in Table 4-2
before performing procedures listed in Table 51.
c. This manual cannot list all malfunctions which may occur. However, all tests or
inspections and corrective action are listed for most common malfunctions.
d. If a malfunction is not listed or is not corrected by listed corrective actions, notify your
Disconnect power from the air conditioner before doing any
maintenance work to the electrical system. High voltage in air
conditioner can kill.
Never work on this equipment unless there is another person nearby
who is familiar with the operation and hazards of the equipment and
who is competent in administering first aid.
Be careful not to contact high voltage connections. Keep one hand
away from the equipment to reduce the hazard of current flowing
through vital organs of the body. Do not be misled by the term "low
voltage." Potentials as low as 24 volts may cause death under adverse
REFRIGERANT UNDER PRESSURE is used in the operation of this
DEATH or severe injury may result if personnel fail to observe safety