Immergas MAGIS COMBO PLUS V2 Series - Page 52

52
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
Error
Code
Anomaly signalled Cause Hydronic module status / Solution
E 35
Safety thermostat
intervention Mixed
zone 3
During normal operation, if an anomaly causes excessive
overheating of the ow temperature in the mixed zone 3,
the unit indicates the malfunction.
e unit does not meet the zone
central heating requirement (1).
E 37
Low power supply
voltage
is occurs when the power supply voltage is lower than the
allowed limits for correct system operation.
If normal conditions are restored, the
system restarts without having to be
reset (1).
E 38 L o s s o f  a m e s i g n a l
is occurs when the heat generator is ignited correctly
and the burner ame switches o unexpectedly; a new at-
tempt at ignition is performed and if normal conditions are
restored, the generator does not have to be reset.
If normal conditions are restored, the
generator restarts without having to
be reset (1) (2) (4).
E 43
Block due to loss of
ame signal
is occurs if the “Flame signal loss” error occurs many
times in a row within a preset period (E38).
Press the Reset button, before
restarting, the heat generator will run
a post-ventilation cycle (1) (4).
E 45 T hig h
e board detects a sudden and unexpected rise in T be-
tween the system ow probe and return probe, the heat
generator limits the burner output to prevent damaging the
condensing module; when the correct T has been re-
stored, the heat generator returns to normal operation.
If normal conditions are restored, the
heat generator restarts without having
to be reset (1) (4).
E 49
High temperature
block on heat
generator return
probe
is occurs when the heat exchanger return circuit reaches
a temperature that is too high.
Make sure that water circulates
properly in the heat generator and that
the three-way valve works properly.
Press the Reset button (1) (4).
E 50
External probe
missing or faulty
In the event the external probe is not connected or is faulty,
the anomaly is indicated.
Check the external probe connection.
E 54
Puer probe anomaly
(optional)
e board detects an anomaly on the puer probe. Puer mode is disabled (1).
E 80
P.C . B . m a l f un ct ion
block
is occurs in the event of malfunctions of the P.C.B. that
controls the gas valve.
Press the Reset button (1) (4).
E 98
Block - maximum no.
of soware errors
e maximum number of soware errors possible has been
reached.
Press the Reset button (1) (4).
E 99 General block A heat generator anomaly has been detected. Press the Reset button (1) (4).
E 121
Zone 1 device oine
alarm
 e d e v i c e c o n n e c t e d t o z o n e 1 i s o  i n e . (1) .
E 122
Zone 2 device oine
alarm
 e d e v i c e c o n n e c t e d t o z o n e 2 i s o  i n e . (1) .
E 123
Zone 3 device oine
alarm
 e d e v i c e c o n n e c t e d t o z o n e 3 i s o  i n e . (1) .
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised Aer-Sales Technical Assistance Centre)
(2) e anomaly can only be veried in the list of errors in the “Information” menu.
(3) e heat pump mode does not start, the heat generator stays active to satisfy the room heating and domestic hot water produc-
tion requests.
(4) e heat generator does not start, the heat pump mode stays active to satisfy the ongoing requests.