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S.97 on Vaillant ecoTEC plus 832 VUW 246/5-5 R6

Your boiler is currently performing an internal health check on its sensors and has temporarily paused heating and hot water to ensure everything is functioning safely.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Automatic test programme: Water pressure sensor, heating and hot water request blocked.

From this model's manual
Verified against the Vaillant/Vaillant Ecotec Pro Ecotec Plus Regular installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Wait for the boiler to complete its automatic test cycleEnsure the boiler power remains switched onMonitor the display to see if the code transitions to a normal status (e.g., S.0 or S.4)

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Related fault codes

F.22View →F.73View →F.74View →

All 175 fault codes on the ecoTEC plus 832 VUW 246/5-5 R6

Seeing a different code? Every code this model can display, in one place.

D.000D.001D.002D.003D.004D.005D.006D.008D.009D.010D.011D.012D.013D.015D.016D.017D.018D.020D.022D.023D.025D.026D.027D.028D.029D.033D.034D.035D.036D.039D.040D.041D.047D.058D.060D.061D.064D.065D.067D.068D.069D.070D.071D.072D.073D.074D.075D.077D.078D.080D.081D.082D.083D.084D.088D.090D.091D.092D.093D.094D.095D.096D.098F.00F.01F.02F.03F.10F.11F.12F.13F.20F.22F.23F.24F.25F.26F.27F.28F.29F.32F.42F.49F.52F.53F.54F.55F.56F.57F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.75F.77F.78F.80F.81F.82F.83F.84F.85F.90F.91F.92F.93F.94P.00P.0P.01P.02P.06S.00S.01S.02S.03S.04S.05S.06S.07S.08S.10S.11S.13S.14S.15S.16S.17S.20S.21S.22S.23S.24S.25S.26S.27S.28S.30S.31S.32S.34S.39S.40S.41S.42S.46S.53S.54S.57S.58S.61S.62S.63S.76S.88S.92S.93S.96S.98S.99T.02T.03T.04T.05T.06T.08

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