6 720 645 347 (2010/09)
Troubleshooting
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67
Fault 11
System configuration: new BUS device
New IPM detected. Check and modify
system configuration.
135
137
New IPM detected.
Check and adjust system
configuration.
Fault 12
System configuration: BUS device missing
ISM1/ISM2not detected. Check connection.
170
171
ISM1/ISM2 no longer detected
in spite of having been
configured.
Check connection.
Fault 12
System configuration: BUS device missing
IPM for cylinder downstream of low loss
header not detected. Check connection and
identification.
172
173
IPM for cylinder downstream
of low loss header not
detected.
Check and correct code. With
the IPM isolated from the
power supply.
Fault 12
System configuration: BUS device missing
IPM with identification x not detected.
Check connection and identification.
178
179
IPM with code x not detected
Check and correct code. With
the IPM isolated from the
power supply.
Fault 13
System configuration: BUS device changed
or replaced
Check system configuration for DHW or
start automatic system configuration.
157 BUS subscriber changed or
replaced.
Check system configuration for
DHW heating or start
automatic system
configuration.
Fault 13
System configuration: BUS device changed
or replaced
Check system configuration for heating
circuit x and connections on IPM for heating
circuit x.
159 BUS subscriber changed or
replaced.
Check system configuration for
heating circuit x and IPM
connections for heating circuit x.
Fault 14
System configuration: incompatible BUS
device
DHW controlled by boiler. IPM control of
DHW has no effect.
117 Incompatible BUS subscriber:
Identify incompatible BUS
subscriber and remove from
the system.
Fault 14
System configuration: incompatible BUS
device
IPM for cylinder must be set to
identification 3 or higher.
118
119
Incompatible BUS subscriber:
Set IPM for cylinder to code 3
or higher.
Fault 19
Unable to save parameter settings
202 BUS subscriber is configured
but not available at present.
Check system layout, check
system configuration, modify if
necessary and set parameter
again.
Information displayed (
Æ
Items 1, 3 and 4 in
Fig. 17)
Text
Code Cause
Remedy (by contractor)