I-62
A-070336_EN • Rev. A
A
dditionAl
i
nformAtion
for
the
i
nstAller
Error code
Fault description
Explanation
Action(s)
171
Alarm contact 1 active
Correct the active fault
172
Alarm contact 2 active
173
Alarm contact 3 active
174
Alarm contact 4 active
183
Unit in parametrization mode
Wait until parametrization
process is complete
195
Maximum duration of the refill
per charging exceeded
Check automatic refill sys-
tem.
The use of an automatic refill system is not rec-
ommended
196
Maximum duration of the refill
per week exceeded
Check automatic refill sys-
tem.
The use of an automatic refill system is not rec-
ommended
209
Fault heating circuit
Check the heating circuit
configuration.
Reset to default parameters
216
Fault boiler
Check the heating circuit
configuration.
Reset to default parameters
217
Sensor error
Check connection and sen-
sor. Replace as required.
218
Pressure supervision
Check system pressure.
243
Swimming pool sensor, error
Check connection and sen-
sor. Replace as required.
270
Temperature difference, heat
exchanger too large
Check the heating system
external hydraulic compo-
nents.
317
Mains frequency outside per-
missible range
Check correct electric supply
in boiler terminals.
320
DHW charging temperature,
sensor error
Check connection and sen-
sor. Replace as required.
324
Input BX, same sensors
Check configuration in pa-
rameters list
330
Sensor input BX1 without func-
tion
Connect temperature sensor
in BX terminal
331
Sensor input BX2 without func-
tion
Connect temperature sensor
in BX terminal
332
Sensor input BX3 without func-
tion
Connect temperature sensor
in BX terminal
333
Sensor input BX4 without func-
tion
Connect temperature sensor
in BX terminal
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