47
GB
Lockouts
133
Safety time for establishment of flame
exceeded
Repetition error counter exceeded
Safety time for establishment of flame
exceeded
151
BMU fault internal
False polarity of the 230V power supply
152
Parameterization error
Reprogram PCB
153
Unit manually locked
Reset button pressed too long
160
Fan speed threshold not reached
Fan speed threshold not reached
162
APS does not close
Air pressure switch does not close
164
Flow/pressure switch HC fault
Flow/pressure switch HC fault
166
Air pressure switch does not open
Air pressure switch does not open
183
Unit in parameterization mode
Unit in parameterization mode (parameter
stick)
322
Water pressure 3 too high
Water pressure on input H3 too high
323
Water pressure 3 too low
Water pressure on input H3 too low
324
Same sensor Input BX
Same sensor Input BX
330
Sensor input BX1 no function
Sensor input BX1 no function
331
Sensor input BX2 no function
Sensor input BX2 no function
332
Sensor input BX3 no function
Flue gas sensor not programmed correctly
353
Cascade flow sensor B10 missing
Cascade flow sensor B10 missing
384
Extraneous light
Short circuit ionization electrode
385
Mains undervoltage
Mains undervoltage
386
Fan speed tolerance
Fan speed tolerance exceeded
388
DHW sensor no function
configuration error sensor input B3/B38
426
Check flue gas damper
malfunction of flue gas damper
427
Config flue gas damper
Parameterization flue gas damper
432
Function ground missing
Missing earth connection