Immergas Magis Combo 12 Plus V2 I Instructions And Recommendations page 77

Error
Anomaly signalled
Code
Storage tank probe
E 12
anomaly
E 15 Configuration error
Fan anomaly
E 16
Parasite flame block
E 20
Heat generator return
E 23
probe anomaly
Push button control
E 24
panel anomaly
System flowmeter
E 26
anomaly
Circulation
E 27
insufficient
(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 produc-
tion requests.
(4) The heat generator does not start, the heat pump mode stays active to satisfy the ongoing requests.
Cause
The board detects an anomaly on the storage tank probe.
If the board detects an anomaly or incongruity on the elec-
tric 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.
ST.008706/000
Indoor Unit status / Solution
The hydronic module is unable to
produce domestic hot water (1).
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 (option-
al) only activates when requested.
Check system circulation and
flowmeter.
Press the Reset button (1).
Magis Combo 12/14/16 Plus V2 I 77