BoilerFaultCodesWhat the manual says
Manufacturer manualTargetheatingflowtemperaturethatissettontheeBUSroomthermostat
Shared across the Ultimate 3 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 screen to ensure it is set to your preferred temperatureObserve the boiler display to see if the status code changes once the target temperature is reachedNo action is required as this is normal system communication
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Related fault codes
All 159 fault codes on the Ultimate3 Combi
Seeing a different code? Every code this model can display, in one place.
d.00d.01d.02d.04d.05d.06d.07d.08d.10d.11d.13d.14d.15d.16d.17d.18d.19d.20d.21d.22d.23d.24d.25d.27d.28d.31d.33d.34d.35d.36d.39d.40d.41d.43d.45d.47d.50d.51d.58d.60d.61d.62d.64d.65d.66d.67d.68d.69d.70d.71d.73d.75d.77d.80d.81d.82d.83d.84d.85d.88d.90d.91d.93d.94d.95d.96F.00F.01F.10F.11F.13F.20F.22F.23F.24F.25F.27F.28F.29F.32F.49F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.75F.77F.78F.83F.84F.85F.86F.87F.88F.89F.97F2F22P.01P.02P.03P.04P.05P.06P.07Pump OverrunS.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.31S.32S.33S.34S.39S.41S.42S.46S.53S.54S.88S.91S.96S.97S.98S.99S.108S.109