BoilerFaultCodesWhat the manual says
Manufacturer manualFrost protection mode
From this model's manual
Verified against the Vaillant/Vaillant Turbomax 824 828 installation & service manual, page 38.
DIY fix possible
Ensure your heating controls are set to a temperature that keeps the boiler active during very cold weatherCheck that your external condensate pipe is not frozenWait for the ambient temperature to rise, as the code will disappear once the boiler detects the danger of freezing has passed
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Related fault codes
All 91 fault codes on the Turbomax 824/828
Seeing a different code? Every code this model can display, in one place.
d.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.83F.00F.01F.10F.11F.20F.22F.23F.24F.27F.28F.29F.32F.33F.37F.41F.42F.43F.60F.61F.62F.63F.64F.65F.66F.67S.00S.01S.02S.03S.04S.05S.07S.08S.10S.11S.13S.14S.16S.17S.20S.21S.23S.24S.27S.28S.30S.31S.32S.33S.36S.39S.53S.54