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8. First aid
In case of an error display, please use this help list to see if the problem can be solved by
following these steps mentioned below.
Problem
Possible cause
Help aid
Fans are not working
No power supply
Please check the power supply
Wrong operation mode
Please check the operation mode
Installation error
Please check the wiring
Fan is stuck
Please remove the object
Control panel is broken
Please replace the control panel
Fan is broken
Please call customer service
Low air flow rate
Wrong operation mode
Please check the operation mode
Filter is blocked
Please clean the filter
Porcelain heat exchanger is
blocked
Please clean the porcelain heat
exchanger
Control panel not functioning
Control panel is hung up
Press the enter button (checkmark) &
the exit button (X) at the same time
and hold for 2 seconds. The control
panel will then restart.