BoilerFaultCodesWhat the manual says
Manufacturer manualAppliance is within the waiting period of the operation block function due to water shortage (water pressure sensor)
From this model's manual
Verified against the Vaillant/Vaillant Ecotec Plus Pro 839592 00 2004 installation & service manual.
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 119 fault codes on the ecoTEC plus 612 VU GB 126/3-5
Seeing a different code? Every code this model can display, in one place.
d.00d.01d.02d.03d.05d.06d.07d.08d.09d.10d.11d.17d.18d.19d.22d.23d.25d.26d.30d.33d.34d.35d.36d.40d.41d.44d.47d.50d.51d.60d.61d.64d.65d.67d.68d.69d.70d.71d.72d.73d.75d.76d.77d.78d.80d.81d.82d.83d.84d.90d.91d.93d.97F.00F.01F.02F.10F.11F.13F.20F.22F.23F.24F.27F.28F.29F.32F.60F.61F.62F.63F.64F.65F.70F.71F.72F.73F.74F.75F.76P.1P.2P.3P.4P.5P.6S.00S.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.34S.36S.53S.54