Single Zone Service Manual - General

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Part 4 Trouble Shooting
5. Cycle Troubleshooting Guide
Problem Possible causes Corrective action Error Code
Abnormal operat-
ing conditions.
• There is a burning smell
and a strange sound
coming from the unit.
• Turn off the air conditioner, unplug the power cord
and contact the service center.
• Water leaks from the
indoor unit even when
the humidity level is low.
• The power cord is dam-
aged or generating
excessive heat.
• A switch, a circuit breaker
(safety, ground) or a fuse is
not operated properly.
The air conditioner
does not work.
• The air conditioner is
unplugged.
• Check whether the power cord is plugged into the
outlet.
• A fuse is blown or the
power supply is blocked.
• Replace the fuse or check if the circuit breaker
has tripped.
27
• A power failure has
occurred.
• Turn off the air conditioner when a power failure
occurs.
• When the power is restored, wait 3 minutes, and
then turn on the air conditioner.
23
• The voltage is too high
or too low.
• Check if the circuit breaker has tripped. 23, 40
• The air conditioner
turned off automatically
at a preset time.
• Press the power button again. 10
• Battery setting is wrong
in the remote controller.
• Is the battery inserted in Remote controller? Is the
battery inserted with the correct terminal (+)(-)?
• Even if you check the upper lists, the air-conditioner
does not operate. Please replace new batteries.
The air conditioner
does not work.
• The type of the indoor
units is not compatible
with that of the outdoor
unit.
• Replace the outdoor unit to suitable one. 05, 53
• The outdoor air tempera-
ture is unsuitable for
operating the air condi-
tioner.
• Heating operation can be used when the outdoor
air temperature is under 18°C, and cooling opera-
tion can be used when the outdoor air tempera-
ture is over -10°C.