Immergas MAGIS M4-30 Use And Installation page 129

Supervision
System Error Operation or protection anomaly
Code
Code
Fault of outlet temperature sensor
H2 41 (T2) of refrigerant from the plate
heat exchanger (liquid pipe).
Fault of outlet temperature sensor
H3 42 (T2B) of refrigerant from the plate
heat exchanger (gas pipe).
H4 43 Protection for three times P6 (L0/L1)
Fault of room temperature sensor
H5 44
(Ta).
H6 45 Fault of fan motor.
H7 46 Main circuit voltage protection fault.
H8 47 Fault of pressure sensor.
Fault of zone 2 water temperature
H9 48
sensor (Tw2).
Fault of outlet water temperature
HA 49
sensor (Tw_out).
Protection "PP" three times and
Hb 50
Tw_out < 7°C
Cause of fault and corrective action
1. Check the sensor resistance.
2. e connector of sensor T2 is loose. Reconnect it.
3. e connector of sensor T2 is wet or there is water inside. Remove
the water and dry the connector. Add waterproof adhesive.
4. Fault of sensor T2, replace it with a new sensor.
1. Check the sensor resistance.
2. e connector of sensor T2B is loose. Reconnect it.
3. e connector of sensor T2B is wet or there is water inside. Remove
the water and dry the connector. Add waterproof adhesive.
4. Fault of sensor T2B, replace it with a new sensor.
e total number of times in which L0 and L1 appear in an hour is
equal to three. See L0 and L1 for the fault management methods.
1. Check the sensor resistance.
2. e sensor Ta is in the control panel.
3. Fault of sensor Ta, replace with a new sensor or switch to a new
panel, or reset Ta, connect a new Ta from the hydraulic module PCB.
1. Strong wind towards the fan, turn the fan in the opposite direction.
Change the direction of the unit or create a guard to prevent the wind
from going towards the fan.
2. e fan motor is damaged, replace it with a new motor.
1. If the power supply input is within the available range.
2. Switch on and o several times quickly and in a short amount of
time. Keep the unit o for more than 3 minutes a er ignition.
3. e part of the circuit of the main control board is faulty. Replace
with a new main PCB.
1. e connector of the pressure sensor is loose, reconnect it.
2. Fault of pressure sensor. Replace it with a new sensor.
1. Check the sensor resistance.
2. e connector of sensor Tw2 is loose. Reconnect it.
3. e connector of sensor Tw2 is wet or there is water inside. Remove
the water, dry the connector. Add waterproof adhesive.
4. Fault of sensor Tw2, replace it with a new sensor.
1. Check the sensor resistance.
2. e connector of sensor Tw_out is loose. Reconnect it.
3. e connector of sensor Tw_out is wet or there is water inside.
Remove the water, dry the connector. Add waterproof adhesive.
4. Fault of sensor Tw_out, replace it with a new sensor.
e same applies for "PP"