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Error
Anomaly signalled
Code
Flue probe anomaly
29
Loss of remote control
31
communication
Low power supply
37
voltage
38
Loss of flame signal
Block due to loss of
43
flame signal
ΔT high
45
Burner power
47
limitation
(1) If the block or anomaly persists, contact an authorised company (e.g. Immergas Authorised After-Sales Centre)
(2) The anomaly can only be verified in the list of errors in the "Information" menu
Cause
The board detects an anomaly on the flue probe.
This occurs if an incompatible remote control is connected,
or if communication between the system and control panel
is lost
This occurs when the power supply voltage is lower than the
allowed limits for correct system operation.
This occurs when the system is ignited correctly and the
burner flame switches off unexpectedly; a new attempt at
ignition is performed and if normal conditions are re-
stored, the system does not have to be reset.
This occurs if the ''Flame signal loss'' error occurs many
times in a row within a preset period (38).
The system detects a sudden, unexpected increase in the ΔT
between the flow probe and the system return probe.
Should flue high temperature be detected, the system re-
duces power supplied so as not to damage it.
UI Status / Solution
The system does not start (1)
Disconnect and reconnect power to
the system. If the control panel is still
not detected at restart, the system will
switch to local operating mode, i.e.
using the controls on the control
panel. In this case, the "Central
Heating" (1) function cannot be
activated.
If normal conditions are restored, the
system restarts without having to be
reset (1)
If normal conditions are restored, the
system restarts without having to be
reset (1) (2)
Press the Reset button, before
restarting, the system will run a
post-ventilation cycle. (1)
The power of the burner is limited to
prevent damage to the condensation
module and once the right ΔT is
restored, the system resumes regular
operation. Make sure there is water
circulating in the system , that the
pump is configured according to
system requirements and that the
return probe works properly. (1)
(1)
71
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