10 Climate 5000 – 6720886922 (2018/04)
Troubleshooting
Troubleshooting
When troubles occur, please check the following points before contacting a repair company.
Problem Possible Causes Solution
Poor Cooling Performance Temperature setting may be higher than ambi-
ent room temperature
Lower the temperature setting
The heat exchanger on the indoor or outdoor
unit is dirty
Clean the affected heat exchanger
The air filter is dirty Remove the filter and clean it according to instructions
The air inlet or outlet of either unit is blocked Turn the unit off, remove the obstruction and turn it
back on
Doors and windows are open Make sure that all doors and windows are closed while
operating the unit
Excessive heat is generated by sunlight Close windows and curtains during periods of high heat
or bright sunshine
Too many sources of heat in the room (people,
computers, electronics, etc.)
Reduce amount of heat sources
Low refrigerant due to leak or long-term use Check for leaks, re-seal if necessary and top up refrigerant
SILENCE function is activated (optional
function)
SILENCE function can lower product performance
by reducing operating frequency. Turn off SILENCE
function.
The unit is not working Power failure Wait for the power to be restored
The power is turned off Turn on the power
The fuse is burned out Replace the fuse
Remote control batteries are dead Replace batteries
The unit’s 3-minute protection has been
activated
Wait three minutes after restarting the unit
Timer is activated Turn timer off
The unit starts and stops fre-
quently
There’s too much or too little refrigerant in the
system
Check for leaks and recharge the system with refriger-
ant.
Incompressible gas or moisture has entered the
system.
Evacuate and recharge the
system with refrigerant
The compressor is broken Replace the compressor
The voltage is too high or too low Install a manostat to regulate the voltage
Poor heating performance The outdoor temperature is extremely low Use auxiliary heating device
Cold air is entering through doors and windows Make sure that all doors and windows are closed during
use
Low refrigerant due to leak or long-term use Check for leaks, re-seal if necessary and top off refrig-
erant
Indicator lamps continue flashing The unit may stop operation or continue to run safely. If the indicator lamps continue to flash or error codes
appear, wait for about 10 minutes. The problem may resolve itself.
If not, disconnect the power, then connect it again. Turn the unit on.
If the problem persists, disconnect the power and contact your nearest customer service centre.
Error code appears in the window
display of indoor unit:
• E0, E1, E2…
• P1, P2, P3…
• F1, F2, F3…
Table 5.
NOTE:
If your problem persists after performing the checks and diagnostics above, isolate your unit immediately and contact an authorized service centre.
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