LG PREMTB10U Manuel D'installation Et D'utilisation page 56

OPERATION INSTRUCTION
56
Troubleshooting Mode Self Diagnosis
The unit will automatically diagnose itself for any problems it experiences. It displays an error
code for Troubleshooting and repair.
• When recovery takes place after occurrence of an error, controller operation mode may
change because of communication with indoor unit. Make sure you set the correct opera-
tion mode after adjusting vane angle settings.
• Since the setting of the Thermostat (with cable) can be altered after its recovery from oc-
currence of a group control error, reset is recommended.
When an error occurs, the phrase "CH" and
an error code number are displayed on the
screen alternately as below.
Example: When Error code 03 occurs.
When an error occurs while operating under
the group control mode, the phrase "CH"
and an error code are displayed on the
screen to the right of the indoor temperature
value alternately as below.
Example: When Error code 03 occurs,
C → H → 0 → 3