Richard WeedonFeb 281 min readVaillant Fault Code F.24F.24Safety switch-off: Temp. incr. too fast: Pump blocked, insufficient pump output, air in product, system pressure too low, non-return valve blocked/incorrectly installed Landlord gas safety inspection Cheshunt, Ware, Hertford0 views0 commentsPost not marked as liked
F.24Safety switch-off: Temp. incr. too fast: Pump blocked, insufficient pump output, air in product, system pressure too low, non-return valve blocked/incorrectly installed Landlord gas safety inspection Cheshunt, Ware, Hertford