novoSchwank shape U
44
Version 013 nov
o
shape U 38/1
9_I
N
T Te
chnical speci
ficati
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n subjec
t t
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change
Error codes
If an error occurs, all gas valves are closed and the
lockout message output [230V] is activated and
the error code is stored internally and transmitted
by MODBUS to the central control unit
SchwankControl Touch.
The fan still runs for 30 seconds in the post-purge
time with maximum fan speed. After that, the
heater is completely switched off and locked
The lock can be reset by activating the reset
function SchwankControl Touch or switching off
the power supply [min. 3 seconds] of the heater.
Error code "A" does not put the heater in a reset-
requiring lock, but only switches off the heater.
Error
code
Error name
Description
1
Ionization error
during start
If flame is not
detected for the 2
ignition attempts
during start
2
Ionization error
during operation
If flame is not
detected for the 2
ignition attempts
after a flame loss
3
APS
open error
[APS=
air pressure switch]
Error Is given if phase
angle control type is
selected [PP02=0]
Error is given if APS
contact opens
during start or
operation
4
APS
closed error
Error Is given if phase
angle control type is
selected [PP02=0]
Error is given if APS
contact already
closed during start
5
Encoder signal
missing error
Error Is given if PWM
control is selected
[PP02=1]
Error is given if no
encoder signal
detected or fan
speed < 10 RPS.
This error is given
after 3 sec.
6
Unexpected
“encoder signal
”error
Error Is given if phase
angle control type is
selected [PP02=0]
and encoder signal
is detected > 30 RPS.
This error is given
after 3 sec.
7
Gas valve
feedback error
Error in gas valve
drive or feedback
check circuitry
8
Ionization
component error
Ionization signal is
out of range
10
MODBUS signal
missing error
If PP01=01 selected
as MODBUS control
and for more than
3 minutes no
MODBUS signal has
been received this
error is given and
heater switch off.
Burner control is not
locked.
Tab 9: Error code IC 4000/1
