8 Climate 5000 SCI – 6720887414 (2019/07)
Troubleshooting
5.2 Troubleshooting Tips
When problems occur, please check the following points before contacting qualified personnel.
Problem Possible Causes Solution
The unit is not working Power failure Wait for the power to be restored
The power switch is off Turn on the power
The fuse is blown Replace the fuse
Remote control batteries are dead Replace the remote control batteries
The unit's 3-minute protection has been activated Wait three minutes after restarting the unit
Poor cooling performance Temperature setting may be higher than the ambient
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
Low refrigerant due to leak or long-term use Check for leaks, re-seal if necessary and top off
refrigerant
The unit starts and stops
frequently
There is too much or too little refrigerant in the system Check for leaks and recharge the system with refrigerant
There is air, incompressible gas or foreign material in the
refrigeration system.
Evacuate and recharge the system with refrigerant
System circuit is blocked Determine which circuit is blocked and replace the
malfunctioning piece of equipment
The compressor is broken Replace the compressor
The voltage is too high or too low Install a manostat to regulate the voltage
Poor heating perfor-
mance
The outdoor temperature is lower than 7°C Check for leaks and recharge the system with refrigerant
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
refrigerant
Table 3.
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