173 Alarm contact 3 active
174
Alarm contact 4 active
176
Water pressure 2 too high
177
Water pressure 2 too low
178
Temperature limiter heating circuit 1
179
Temperature limiter heating circuit 2
183
Unit in parameterization mode
195
Maximum duration of the refill per charging exceeded
196
Maximum duration of the refill per week exceeded
209
Fault heating circuit
214
Monitoring of motor
215
Fault fan air diverting valve
216
Fault boiler
217
Sensor error
218
Pressure supervision
241
Flow sensor for yield measurement, error
242
Return sensor for yield measurement, error
243
Swimming pool sensor, error
260 217 Flow temperature 3, sensor error
270 215 Temperature difference, heat exchanger too large
317 214 Mains frequency outside permissible range
320 217 DHW charging temperature, sensor error
321 217 DHW outlet temperature, sensor error
322 218 Water pressure 3 too high
323 218 Water pressure 3 too low
324 146 Input BX, same sensors
325 146 Input BX/extension module, same sensors
326 146 Input BX/mixing group, same sensors
327 146 Extension module, same function
328 146 Mixing group, same function
329 146 Extension module/mixing group, same function
330 146 Senso
r input BX1 without function
331 146 Sensor input BX2 without function
332 146 Sensor input BX3 without function
333 146 Sensor input BX4 without function
335 146 Sensor input BX21 without function
336 146 Sensor input BX22 without function
339 146 Collector pump Q5 missing
340 146 Collector pump Q16 missing
341 146 Sensor B6 missing
342 146 Solar charging sensor B31 missing
343 146 Solar integration missing
344 146 Solar controlling element buffer K8 missing
345 146 Solar controlling element swimming pool K18 missing
346 146 Solid fuel boiler pump Q10 missing
347 146 Solid fuel boiler comparative sensor missing
348 146 Solid fuel boiler address error
349 146 Buffer storage tank return valve Y15 missing
350 146 Buffer storage tank address error
351 146 Primary controller/system pump, address error
352 146 Pressureless header, address error
353 146 Sensor B10 missing
371 209 Flow temperature heating circuit 3
372 209 Temperature limiter heating circuit 3
373 103 Extension module 3
374 169 Sitherm Pro calculation
375 169 BV stepper motor
376 169 Drift test limit value
377 169 Drift test prevented
378 151 Internal repetition
382 129 Repetition speed
384 151 Extraneous light
385 151 Mains undervoltage
386 129 Fan speed tolerance
387 129 Air pressure tolerance
388 146 DHW sensor no function
426 151 Feedback flue gas damper
427 152 Configuration flue gas damper
429 218 Dynamic water press
ure too high
430 218 Dynamic water pressure too low
431 217 Sensor primary heat exchanger
432 151 Function earth not connected
433 216 Temperature primary heat exchanger too high
Maintenance code
Maintenance
code
Description of maintenance Priority
1 Number of burner hours run exceeded 6
2 Number of burner starts exceeded 6
3 Maintenance interval exceeded 6
5 Water pressure heating circuit too low
(dropped below lower pressure limit 1)
9
10 Change batteries of outside sensor 6
18 Water pressure 2 heating circuit too low
(dropped below lower pressure limit 2)
9
10 Change batteries of outside sensor 6
22 Water pressure 3 heating circuit too low
(dropped below lower pressure limit 3)
9
25 Automatic filling of water activated 3
30
Operation
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