The touch screen displays error code 706.
The chamber cooling fan cable has poor contact.
The chamber cooling fan or the motherboard is damaged.





Turn the power switch OFF (symbol "〇") and unplug the power supply cable.
Remove the ten screws securing the bottom cover with a 2.0 mm Allen key.


Turn the power switch OFF (symbol "〇") and unplug the power supply cable.
Interchange the chamber cooling fan cable and the auxiliary cooling fan cable.

Plug in the power supply cable and turn the power switch ON (symbol "|").
On the touch screen, turn the auxiliary cooling fan on.
If the chamber cooling fan fails to rotate normally, it indicates that the chamber cooling fan needs to be replaced.
If the chamber cooling fan rotates normally, it indicates that the auxiliary cooling fan needs to be replaced.
