Immergas MAGIS PRO 12 V2 Instructions And Recommendations page 42

Error Code
Compressor sensor error (overload protection
A320
sensor)
A403 Freezing detection (during cooling operation)
Protection of outdoor unit when in overload
A404
(during safety start-up, normal operating status)
Compressor not working due to high pressure
A407
A416 The compressor discharge is overheated
Outdoor unit EEV operation error
A430
Not used on this model
A425
Central heating blocked (outdoor temperature
A440
beyond 35°C)
A441 Cooling blocked (outdoor temperature below 9°C) (1)
A458 Error of outdoor unit fan no.1
Compressor start-up error (Inverter)
A461
Inverter total current overload error
A462
Compressor overheated sensor
A463
A464 Inverter IPM current overload error
A465 Compressor overload error
A466 Low voltage error of DC circuit
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised After-Sales Technical Assistance Centre).
42
Anomaly signalled Indoor unit status / Solution
Check the position of the sensor.
Check the relative wiring
Replace the sensor
(1)
Check the chiller cycle.
Check the temperatures of the plate heat exchanger
(1)
Check the chiller cycle.
Check the compressor connections.
Check the resistances between the different phases of the compres-
sor
(1)
Check the chiller cycle
(1)
(1)
(1)
(1)
(1)
(1)
Check the chiller cycle.
Check the compressor connections.
Check the resistances between the different phases of the compres-
sor
(1)
Check the inlet current.
Check the refrigerant charge.
Check normal operation of the fan.
(1)
Check the compressor sensor.
(1)
Check the compressor connections and its normal operation.
Check the refrigerant charge.
Check whether there are obstacles around the outdoor unit.
Check whether the service valve is open.
Check whether the installation pipes are mounted properly.
(1)
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)