Section IV. TROUBLESHOOTING
a. This section contains troubleshooting information for locating and correcting most of
the operating troubles which may develop in the air conditioner. You should perform
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 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
At outside temperatures below 0 F (18 C) LPCO will have to be
jumped to operate in cool mode.