Immergas MAGIS HERCULES PRO MINI 6 Instructions And Recommendations page 63

Error Code
Compressor overload error
465
466 Low voltage error of DC circuit
Compressor rotation error
467
468 Current sensor error (inverter)
Voltage sensor error of DC circuit (inverter)
469
EEPROM reading/writing error of outdoor unit
470
471 EEPROM reading/writing error of outdoor unit
474 Inverter temperature sensor error
475 Error of outdoor unit fan no.2 (where present)
484 PFC overload
485 Incoming current sensor error
500 IPM overheated
554 Coolant gas leak error
Inverter board error
590
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised After-Sales Technical Assistance Centre).
Anomaly signalled Hydronic module status / Solution
Check the compressor connections and its normal operation.
Check the resistances between the different phases of the compres-
sor.
(1)
Check the input voltage.
Check the power connections.
(1)
Check the compressor connections.
Check the resistances between the different phases of the compres-
sor.
(1)
Check the main board.
(1)
Check the power connector of the inverter board.
Check the connectors RY21 and R200 of the inverter board.
(1)
Check the main board.
(1)
Check the main board.
(1)
Replace inverter board (1)
Check the wiring.
Check that the fan is powered.
Check the fuses in the main electrical panel.
(1)
Check inductances.
Replace inverter board.
(1)
Replace inverter board.
(1)
Check temperature of inverter board. Switch the machine off. Wait
for the inverter to cool down. Switch the machine back on.
(1)
Check that the coolant is charged
Check the liquid sensor of the indoor unit
Check whether the service valve is open
Check whether the installation pipes are mounted properly.
(1)
Check normal operation of the main board.
Replace the main board
(1)
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