BoilerFaultCodesWhat the manual says
Manufacturer manualWater pressure sensor check is running, demand (DHW or heating) is blocked
Shared across the ecoTEC plus range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
DIY fix possible
Wait for the check to complete (usually takes less than 1 minute)If the code persists, check the boiler pressure gauge is between 1 and 1.5 barIf pressure is low, top up the system using the filling loopPress the reset button if the code remains on screen for an extended period
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Related fault codes
All 77 fault codes on the ecoTEC plus
Seeing a different code? Every code this model can display, in one place.
Communication faultD.17F.00F.01F.02F.03F.10F.11F.12F.13F.20F.22F.23F.24F.25F.26F.27F.28F.29F.32F.35F.42F.49F.52F.53F.54F.56F.57F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.75F.76F.77F.78F.83F.84F.85F.91F.92F.93S.10S.11S.13S.14S.15S.16S.17S.20S.21S.22S.23S.24S.25S.26S.27S.28S.30S.31S.32S.34S.41S.42S.53S.54S.96S.98