20
6. TROUBLESHOOTING
Problem
Solution
Remote control unit does not work.
• If the unit is experiencing abnormal interference or
the functions are being changed too frequently,
wireless remote control unit may not work properly.
Pulling out and firmly re-inserting the power plug
should reestablish normal operation.
• Is the remote control unit pointed at the receiver?
Is there any obstruction?
• Check if the batteries in the control unit are correct;
if not, insert the correct batteries.
There is water leakage from the indoor unit.
• The air humidity is on the high side.
• Condensed water has overflowed.
• The indoor unit drainage pipe connection is loose.
There is water leakage from the outdoor unit.
• When the unit is operating in COOL mode,
condensation will form at the connection of pipe
and pipe joint due to the water being cooled down.
• When in “HEAT” or “Defrosting” mode, the ice has
thawed and flowed out.
• When in “HEAT” mode, water adhering to the heat
exchanger has dripped off.
Noise is emitting from the indoor unit.
• This is a fan or compressor relay switching (On/
OFF) sound.
• When the unit is defrosting or has stopped running,
sound will be emitted due to the refrigerant flowing
in the opposite direction.
The indoor unit does not produce airflow.
• In HEAT “
” mode and when the indoor heat
exchanger’s temperature is very low, the unit may
stop generating wind in order to prevent the
generation of cool wind (within 3 minutes).
• In HEAT “
” mode and when the outdoor
temperature is very low or there is high humidity,
the outdoor heat exchanger may be frosted. In
such case, the unit will automatically start
defrosting and the indoor unit fan stops blowing for
3 - 12 minutes. During defrosting, water may flow
out of the unit or vapor may be produced.
• In dehumidifying “
” mode, the indoor fan
sometimes stops in order to avoid recondensation.
Moisture forms on the air outlet vent.
• If the unit is operating in high humidity for long
periods of time, moisture will condense on the air
outlet grill and drip off.
OI-180-20-EG
01_SAP-KRV9AEH_EN.fm Page 20 Tuesday, June 8, 2010 3:40 PM
