BoilerFaultCodesWhat the manual says
Manufacturer manualProduct is within the waiting period of the operation blocking function as a result of low water pressure (temperature gradient)
From this model's manual
Verified against the Vaillant/Vaillant Ecotec Plus 832 Lpg Vuw Gb 326 5 5 4704459 installation & service manual.
DIY fix possible
Locate the filling loop connected to your system pipework.Open the valves gradually to top up the system pressure until the gauge reads between 1.0 and 1.5 bar.Close the valves tightly and check the pressure settles correctly before resetting the boiler.
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Related fault codes
All 94 fault codes on the ecoTEC plus 835 H combi A VUW GB 356/5-5
Seeing a different code? Every code this model can display, in one place.
F.00F.01F.02F.03F.10F.11F.12F.13F.20F.22F.23F.24F.25F.26F.27F.28F.29F.32F.42F.49F.52F.53F.54F.56F.57F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.75F.77F.78F.80F.81F.83F.84F.85F.90F.91F.92F.93S.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.57S.58S.61S.62S.63S.76S.96S.97S.98