16
Troubleshooting
The following fault cases are served as a guide to assess a problem and take correct
action on it.
Problem Possible Solutions
Air conditioner does not operate - Is it a power failure?
- Has the power plug been unplugged?
- Has the circuit breaker or fuse shut o?
- Are there any obstacles or disturbance
supply oscillators in the room to disturb
the signal from remote controller?
Remote controller is not available
and does not display
- Check whether the batteries in remote
controller are usable.
- Check whether the batteries are
positioned correctly
Operation does not start when
I/O button is pressed after
operation was stopped
- This is a way to protect the air conditioner.
Please wait 3 minutes and try again
After operation terminates,
the vane appears not to close
completely
- Stepping motor could not nd the Reset
point. Please restart the air conditioner
and stop again
Cooling and heating eect is not
good.
- Is the temperature setting appropriate?
- Are the air lters clean?
- Are there any obstacles blocking the inlets
and outlets of the indoor and outdoor
units?
- Is Sleep mode used during the daytime?
- Is the indoor fan speed set low?
- Are doors and windows closed?
Air will not immediately blow out
at the start of Heat mode
- Please wait as the air conditioner is
warming up
If the power supply is suddenly
cut o, when the power is normal
again, the air conditioner will
automatically resume the in same
mode of operation as before the
power failure
- This is called auto-restart function.
(This function is only accessible for certain
types of air conditioners with the function
of auto-restart)
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