Anomaly Possible causes
The unit cannot be started. • The power supply is not connected.
• Check if the power supply cable is damaged.
• Check for anomalies on the power supply.
• Voltage is too low.
The units stops after operating a while. • The indoor or outdoor unit’s air inlet/outlet are
clogged.
• In cooling mode the unit stops its operation
because the outdoor temperature is above the limit.
Poor cooling effect. • Air filter is dirty or clogged.
• There are too many heat source or people inside
the room.
• Windows or doors are opened.
• There are obstacles blocking the air intake or outlet.
• The set temperature is too high.
• There is refrigerant leakage.
• The performance of room temperature sensor
becomes worse.
Poor heating effect • Air filter is dirty or clogged.
• Windows or doors are opened.
• There are obstacles blocking the air intake or outlet.
• The set temperature is too low.
• There is refrigerant leakage.
• The outdoor ambient temperature is lower than the
maximum limit.
• The performance of room temperature sensor
becomes worse.
Odours are emitted • There’s an odor source in the room, it’s
recommended to eliminate the source and clean
the filter.
Remote control is not working • Check if the voltage of the batteries of the wired
controller is enough; or change them.
• Is the remoter controller in the signal receiving
range? Or is it blocked by obstacles?
• If the indoor unit does not have the receiver, point
the remote controller to the wired controller.
1. TROUBLESHOOTING
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21. TROUBLESHOOTING
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