BoilerFaultCodesWhat the manual says
Manufacturer manualBoiler goes to lock out, No gas, Insufficient gas, Incorrect gas valve adjustment, Electrode defective, Ignition lead defect, Electronic igniter defective, Check air inlet duct
From this model's manual
Verified against the Vaillant/Vaillant Ecomax installation & service manual, page 49.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Related fault codes
All 90 fault codes on the Ecomax Condensing 600/800 series
Seeing a different code? Every code this model can display, in one place.
d.0d.1d.2d.5d.7d.8d.10d.11d.13d.14d.16d.22d.23d.24d.25d.34d.35d.40d.41d.44d.46d.47d.60d.61d.67d.68d.69d.71d.72d.73d.80d.81d.82d.83F.0F.1F.10F.11F.13F.20F.22F.23F.24F.25F.27F.29F.32F.60F.61F.62F.63F.64F.65F.67P.1P.2P.5S.0S.1S.2S.3S.4S.5S.6S.7S.8S.10S.11S.13S.14S.15S.16S.17S.20S.21S.23S.24S.25S.26S.27S.28S.30S.32S.34S.36S.37S.39S.53S.54
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