14
The following symptoms do not indicate malfunction.
Symptom Cause
The system is not turn on or respond
to remote controller immediately after
power on.
*Please wait a moment (5min/15sec)
after power on the system.
• For new product fi rst time power on after
installation, the system requires approximately 5
minutes for “System Auto confi guration Process”.
• For subsequent operation start up by power
switch, the system requires 15secs for “Program
Initialization”.
Operation is delayed a few minutes after
restarting.
• The delay is a protection to the unit’s
compressor.
Indoor fan stops occasionally during
automatic fan speed setting.
• This is to help remove the surrounding odour.
Indoor fan stops occasionally during
heating operation.
• To avoid unintended cooling eff ect.
The room has a peculiar odour. • This may be due to damp smell emitted by the
wall, carpet, furniture or clothing.
Cracking sound during operation. • Changes in temperature caused the unit to
expand and contract.
Water fl owing sound during operation. • Refrigerant fl ow inside the unit.
Mist emerges from indoor unit. • During cooling operation, the discharged cold air
may condense to water vapour.
Outdoor unit emits water or steam. • During cooling operation, condensation occurs
on cold pipes and the condensed water may drip
from the outdoor unit.
• During heating operation, frost formed on the
outdoor unit during deice cycle melts and is
discharged as water or steam.
Discoloration of some plastic parts. • Discoloration is subjected to the types of
materials used in plastic parts. It is accelerated
when exposed to heat, sun light, UV light or
environmental factors.
Check the following before calling for servicing.
Symptom Check
Operation in HEAT/COOL mode is not
working effi ciently.
• Set the temperature correctly.
• Close all doors and windows.
• Clear any obstruction at the air inlet and air outlet
vents.
Noisy during operation. • Check if the unit has been installed at an incline.
The unit does not work. • Check if the circuit breaker is tripped.
• Check if timers have been set.
Troubleshooting
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