Fault
code
Fault description
Explanations/causes
110
Safety temperature limiter lockout
No heat removal, STB/interruption, possibly short in gas
valve
2)
, internal fuse defective; let device cool down and
reset; if this fault occurs several times, inform heating
specialist
3)
111
Temperature monitor switching off
No heat removal; pump defect,radiator valves closed
1)
119
Fault pressure switch
Check or refill water pressure
1)
121
Flow temperature 1 (Heating circuit 1) monitor-
ing
122
Flow temperature 2 (Heating circuit 2) monitor-
ing
126
DHW charging monitoring
127
Legionnaire>'s setpoint temperature not reached
128
Flame failure during operation
130
132
Gas pressure monitor- or air pressure switch fault Lack of gas, contact GW opened, external temperature
monitor
133
No flame during the safety time
Reset, if the fault re-occurs several times, contact heating
specialist, lack of gas, polarity of mains connection, safe-
ty period, check ignition electrode and ionisation current
1)
3)
146
Configuration fault Common message
151
Internal fault
Check parameter (see Adjustment Table Heating Expert
and/or Call-up Values), reset LMS, change LMS, heating
expert
1)
3)
152
Parameterization fault
160
Fan fault
Fan possible defective, speed threshold set wrongly
3)
162
Air pressure monitor doesn`t close.
171
Alarm contact H1 or H4 activated.
172
Alarm contact H2 (EM1, EM2 or EM3) or H5 acti-
vated
178
Temperature monitor heating circuit 1
179
Temperature monitor heating circuit 2
183
The device is in Parameter setting mode
217
Sensor fault
218
Pressure supervision
241
Flow sensor solar sensor fault
242
Return sensor solar sensor fault
243
Swimming pool sensor fault
260
Flow temperature 3 Sensor fault
270
Monitoring function
317
Ned frequency outside of valid range
320
DHW Charging temp sensor fault
321
324
BX same sensors
Maintenance
142
Condensing gas boiler Eurocondense three125-300 kW
7308536-02 06.13