Immergas MAGIS COMBO 4 V2 Instructions And Recommendations page 48

Error
Anomaly signalled
Code
E 15 Configuration error
E 16 Fan anomaly
E 20 Parasite flame block
Heat generator return
E 23
probe anomaly
Push button control
E 24
panel anomaly
System flowmeter
E 26
anomaly
Circulation
E 27
insufficient
Mixed zone 2 probe
E 32
anomaly
Mixed zone 3 probe
E 33
anomaly
Safety thermostat
E 34 intervention Mixed
zone 2
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised After-Sales Technical Assistance Centre)
(2) The anomaly can only be verified in the list of errors in the "Information" menu.
(3) The heat pump mode does not start, the heat generator stays active to satisfy the room heating and domestic hot water pro-
duction requests.
(4) The heat generator does not start, the heat pump mode stays active to satisfy the ongoing requests.
48
Cause
If the board detects an anomaly or incongruity on the
electric wiring, the appliance will not start.
This occurs if the fan has a mechanical or electrical fault.
This occurs in the event of a leak on the detection circuit or
anomaly in the flame control unit.
The board detects an anomaly on the heat generator return
NTC probe.
The board detects an anomaly on the pushbutton panel.
The board detects an anomaly on the system flowmeter.
Booster pump, if any, always working.
This happens when the hydronic module overheats due to
poor water circulation in the primary circuit. The causes
can be:
- low system circulation; check that no shut-off devices are
closed on the central heating circuit and that the system is
free of air (deaerated);
- pump blocked; free the pump;
- damaged flowmeter.
If the board detects an anomaly on the mixed zone 2 probe,
the system cannot work in the affected area.
If the board detects an anomaly on the mixed zone 3 probe,
the system cannot work in the affected area.
During normal operation, if an anomaly causes excessive
overheating of the flow temperature in the mixed zone 2,
the unit indicates the malfunction.
Hydronic module status / Solution
If normal conditions are restored, the
heat generator restarts without having
to be reset (1).
Press the Reset button (1) (4).
Press the Reset button (1) (4).
The system does not start (1) (4).
If normal conditions are restored, the
system restarts without having to be
reset (1).
The system does not start (1) (3).
Make sure the booster pump (optio-
nal) only activates when requested.
Check system circulation and
flowmeter.
Press the Reset button (1) (3).
(1).
(1).
The unit does not meet the zone
central heating requirement (1).