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9. TROUBLESHOOTING CHART
TROUBLESHOOTING PROCEDURES :
• Following details of “What to be pre-checked first”, make sure of the basic items.
• When there is no trouble corresponding to above, check in detail the faulty parts following “How to judge
faulty parts by symptoms” later.
9-1. What to be Prechecked First
9-1-1. Power Supply Voltage
The line voltage must be AC 220/230/240V. If the line
voltage is not within this range, this air conditioner
may not work normally.
9-1-2. Incorrect Cable Connection between
Indoor and Outdoor Units
The indoor unit is connected to the outdoor unit with 3
cables. Make certain that the indoor and outdoor units
have been connected properly, with terminals assigned
the same numbers wired to each other. If the connec-
tors are not connected as specified, the outdoor unit
will not operate normally.