Kelvinator Air Conditioning
Troubleshooting 9
Problem
Cause
Water leakage of
outdoor unit
• During cooling operation, water
condensates around the pipes and
connection joints.
• During defrosting operation, thawed
water flows out.
• During heating operation, water on the
heat exchanger drips out.
Noise from indoor
unit.
• The noise emitted when the fan or
compressor relay is switched on or off.
• When the defrosting operation
is started or stopped, there is a
sound of refrigerant flowing in the
reverse direction.
Indoor unit can not
blow air
• In HEAT mode, when the temperature
of indoor heat exchanger is very low,
air flow is stopped in order to prevent
cold air. (within 2 minutes)
• In HEAT mode, when the outdoor
temperature is low or humidity is high,
frost will be formed on the outdoor
heat exchanger. The unit will defrost
automatically and indoor unit will stop
blowing air for 3-12 minutes.
• During defrosting operation, water or
vapour may be emitted.
blowing air for 3-12 minutes in order
to avoid condensing water being
vaporised again.
Moisture on air
outlet
• If the unit operates at high humidity for a
long time, moisture will be generated on
the air outlet grill and then drip off.
H1: Defrosting
It is normal. The unit is in defrosting mode
and heating will recommence soon.
E3: Low pressure
warning
Your air conditioner has lost refrigerant.
Contact your installer to check for
potential leaks.
The pressure in the refrigeration system is low and could result
in the unit breaking down. Ask a certified installer to control it.
If any one of the following situations occurs, immediately stop
all operations, disconnect the power supply, and contact the
authorised personnel.
• There is a harsh sound during operation.
• Strong odours are emitted during operation.
• Water is leaking from the unit.
• The circuit breaker often trips.
• Water or other liquid is splashed into the unit.
• Power cord and power plug is overheating.
The air conditioner is not user serviceable. Incorrect repair
may cause electric shock or fire, so please contact an
authorised service center for professional repair.
The following checks prior to contact may save you time
and money.
Problem
Cause
The unit does not
operate
The unit does not operate if it is
turned on immediately after it is
turned off. This is to protect the unit.
You should wait about 3 minutes.
Odours are emitted
• Some odours may be emitted
from the indoor unit. This is the
result of room smells (such as
furniture,tobacco,etc.) which have
been taken into the air conditioner.
• Consult authorised service centre for
cleaning if the odours persist.
"Water flowing" noise
The swishing noise like water flowing is
the refrigerant flowing inside the unit.
Mist is emitted in
COOL mode
During cooling operation, a thin mist
may be seen emitted from the indoor
unit due to high room temperature
and humidity.
After a period of time, the mist will
disappear as the decrease of room
temperature and humidity decreases.
Cracking noise
This is the sound of friction caused
by expansion and/or contraction of
panel or other parts due to the change
of temperature.
The unit can not be
started up
• Is the power cut off?
• Is the power plug loose?
(if applicable )
• Is the circuit protection device
tripped off?
• Is voltage higher or lower?
(Tested by professionals)
• Is the TIMER correctly used?
Cooling/Heating
effect is poor
• Is temperature setting appropriate?
• Is the inlet or outlet blocked?
• Is the filter dirty?
• Is the window or the door open?
• Is low fan speed set?
• Are there heat sources in the room?
Remote control does
not transmit signals
• Check if there is magnetic or
electrical interference near the unit
that may affecting operation of the
remote control. In this case, pull the
plug out and reinsert it.
• Is the remote control within its
operating range or obstructed?
Check the condition of the batteries
and replace them if necessary.
• Check if the remote control
is damaged.
Water leakage of
indoor unit
• The humidity is high.
• Condensing water overflows.
• Drain hose is loose or obstructed.
Troubleshooting
• In Dehumidify mode, the indoor fan will stop
