Alpha E-Tec Plus 28NX - Page 63

Alpha E-Tec Plus 28NX, 33NX and 38NX - Error Codes and Fault Finding
(1) If the shutdown or fault persists, contact contact Alpha Heating Innovation Technical Helpline
(2) The anomaly can only be verified in the list of errors in the 'Information' menu
(3) Error displayed only on Climatic
Error
code
Fault Cause Boiler status/Solution
High temperature
block on return sensor
Communication failure
with Climatic wireless
Anomaly pump
blocked
Air in circulator
Return/flow sensor
exchange
Return and/or flow
sensor malfunction
Flow and/or return
sensors temperature
drift
OFF MODE set on
boiler (fault only
displayed on remote
device)
Block - maximum
number of software
errors
Screed heater in
progress
Deaeration in
progress
PCB fault
49
51
60
61
70
75
76
83
98
138
139
- - - -
The temperature measured by the return sensor
is above 90°C. The block is with manual reset
If there is no communication between the boiler
and Climatic wireless version, an anomaly is
signalled. From this moment it is only possible to
control the system by means of the control panel
of the boiler itself
The pump is stopped due to one of the following
causes:
Impelloer blocked or electrical fault
Air is detected inside the pump, the pump cannot
work
In case of an incorrect boiler wiring connection
the error is detected
Possible failure of one or both system return and
flow sensors
A malfunction of one or both system return and
flow sensors is detected
The boiler is set to OFF mode. Commands sent
from the remote device are not executed
The maximum number of software errors possible
has been reached
Signalling to remote screed heater function
devices (except Climatic)
Signalling to remote venting function devices
(except Climatic)
PCB hardware fault
The error disappears when the temperature
detected by the return sensor drops below
70°C. Press the 'RESET' button (1)
Check operation of the wireless Climatic,
check the battery charge (refer to the relative
instruction booklet)
Try to unblock the pup as described in the
relative section. If normal conditions are
restored the boiler restarts without having to be
reset (1)
Vent the pump and central heating circuit.
If normal conditions are restored the boiler
restarts without having to be reset (1)
The boiler does not start (1)
The boiler does not start (1)
The boiler does not start (1)
Reactivate all boiler functions by pressing the
'ON.Stand-by button
Press the 'RESET' button (1)
(1)
(1)
Replace PCB
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