F22 fault code on Vaillant Ecotec Boilers

F22 fault code (F.22) – Vaillant Ecotec Boilers

F22 fault code is one of the more likely faults on any combi boiler. This fault renders the boiler in standby, stopping any heating or hot water demands. The moment of wanting a nice hot shower or cosy bath – gone, and the house slowly approaches the temperature of your fridge whilst the boiler displays […]

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