Vaillant fault codes
From the Vaillant manuals on file, range by range.
Vaillant aroTHERM
- F.073Sensor fault: building circ. water pressure
- F.094Fault: vortex
- F.1117Compressor: phase failure
- F.22Heating installation filling pressure critically low
- F.514Sensor fault: compr. inlet temp
- F.517Sensor fault: compr. outlet temp
- F.519Sensor fault: building circuit return temp
- F.520Sensor fault: building circuit flow temp
- F.526Sensor fault: EEV outlet temp
- F.582Fault: EEV
- F.585Sensor fault: capac. outlet temp
- F.723Building circuit: pressure too low
Vaillant VU 446/5-5 / VU 606/5-5
- F.00Flow temperature sensor interruption
- F.01Return temperature sensor interruption
- F.03Cylinder temperature sensor interruption
- F.10Flow temperature sensor short circuit
- F.11Return temperature sensor short circuit
- F.13Cylinder temperature sensor short circuit
- F.22Safety shutdown: water deficiency
- F.23Safety shutdown: temperature spread too great
- F.24Safety shutdown: temperature rise too fast
- F.25Safety shutdown: flue gas temperature too high
- F.27Safety shutdown: flame simulation
- F.32Fan fault