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VCW GB 242 EH Valliant Boiler?
Vallient boiler showing f28 but pressure is fine?
Valliant Boiler?
flashing f22 message?
Vallliant F75 error message?
Valliant Turbo Max Non Condensing RS boiler?
Valliant Eco Tech 615 boiler ?
Valliant Boiler F22 Error?
another with a Valliant showing F22 and 0.4 bar fault?
No hot water [Valliant boiler, Turbomax VUW 242]?
eco digital 831 manual request?
Boiler-Valliant Ecotec Plus-won't power up, display off?