BoilerFaultCodesWhat the manual says
Manufacturer manualNo heating demand: Summer mode, eBUS controller, waiting period
Shared across the Energy 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
Check your thermostat or programmer settings to ensure a heating or hot water demand is requestedVerify that the boiler is not set to 'Summer Mode' if you require central heatingEnsure your external controller or smart thermostat has an active connection to the boiler
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Related fault codes
All 94 fault codes on the Energy
Seeing a different code? Every code this model can display, in one place.
ConnectionF.00F.01F.10F.11F.13F.20F.22F.23F.24F.25F.27F.28F.29F.32F.33F.49F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.75F.76F.77F.78F.83F.84F.85F.86F.87F.88F.89F.91P.01P.02P.03P.04P.05P.06P.07P.10S.0S.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.32S.33S.34S.39S.41S.42S.46S.53S.54S.76S.88S.91S.96S.97S.98S.99S.108S.109