BoilerFaultCodesWhat the manual says
Manufacturer manualStatus of the 24V room thermostat (ON/OFF)
Shared across the Compact 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 room thermostat or wall controller to ensure it is set to a higher temperature than the current room temperatureEnsure the thermostat is not in 'off' or 'frost protection' modeReplace the batteries in your wireless room thermostat if applicable
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Related fault codes
All 143 fault codes on the Compact
Seeing a different code? Every code this model can display, in one place.
d.00d.01d.02d.05d.06d.08d.09d.10d.11d.13d.14d.15d.17d.18d.20d.21d.22d.23d.27d.28d.33d.34d.35d.36d.39d.40d.41d.43d.45d.47d.50d.51d.58d.60d.61d.64d.65d.67d.68d.69d.71d.80d.81d.82d.83d.85d.88d.90d.91d.93d.94d.96d.149d.165d.191d.192F.00F.01F.10F.11F.13F.20F.22F.23F.24F.25F.27F.28F.29F.32F.33F.46F.49F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.75F.76F.77F.78F.83F.84F.85F.86F.87F.88F.89F.97P.00P.01P.03P.04P.08S.00S.01S.02S.03S.04S.05S.06S.07S.08S.10S.11S.13S.14S.15S.16S.17S.20S.21S.23S.24S.25S.26S.27S.28S.30S.31S.32S.34S.39S.41S.42S.46S.53S.54S.58S.76S.88S.91S.96S.98