BoilerFaultCodesWhat the manual says
Manufacturer manualAutomatic bypass
Shared across the 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
Ensure all radiator valves are fully open to allow water to circulate freelyCheck that your system pressure gauge is set between 1 and 1.5 barTurn the boiler off at the mains for 60 seconds and then switch it back on to reset the system
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Related fault codes
All 121 fault codes on the Thermocompact
Seeing a different code? Every code this model can display, in one place.
22.D24.D33.S35.SBurner lock out indicatord.00d.01d.02d.05d.07d.08d.10d.11d.21D.22d.23D.24d.25d.30d.33d.34d.35d.37d.40d.41d.50d.60d.61d.64d.65d.67d.68d.69d.71d.72d.73d.75d.76d.80d.81d.82d.83Er.1Er.2Er.3Er.4Er.5Er.6Er.7Er.8Er.9Er.10Er.11Er.13Er.14Er.15Er.16Er.17F.00F.01F.10F.11F.20F.22F.23F.24F.27F.28F.29F.32F.33F.37F.41F.42F.43F.60F.61F.62F.63F.64F.65F.66F.67F22P1P2P3P11P12P13S.00S.01S.02S.03S.04S.05S.07S.08S.10S.11S.13S.14S.16S.17S.20S.21S.23S.24S.27S.28S.30S.31S.32S.33S.34S.36S.39S.52S.53S.54