emmeti X-REVO-0919E, Use And Installation Manual

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9. ANOMALIES AND FUNCTIONING
9.2 Indications visible on the outdoor units control board X-REVO - XX19 XE , X-REVO - XX19 EX
The error codes are indicated by the type and number of flashes of the LEDs on the outdoor unit control board, as better specified below:
Models X-REVO-0919EX, X-REVO-1219EX, X-REVO-1819EX:
LED1 indicates the first digit of the error code number, LED2 indicates the second digit of the error code and LED3 indicates an error of the outdoor unit inver-
ter board.
When LED3 is off, LED1 and LED 2 indicate an error code on the main control board.
When LED3 is on, LED1 and LED 2 indicate an error code of the inverter board.
When LED3 flashes, LED 1 is off and LED 2 is also off, indicating that the compressor is preheating. Errors are displayed with an interval of 5 seconds.
If the LEDs are off there are no faults, active protections or preheating.