Vokera Linea 24 combi boiler pressure dropping?

if you are losing pressure regularly it can only be through a leak or the expansion vessel.To determine whether you have a leak pressurise your system to 1.5 bar and leave overnight but do NOT USE THE BOILER during this period.If the pressure is still the same the next day then your system is watertight as the slightest of leaks will lower the pressure. lower the pressure back to 1 bar(drain water via a radiator)This would then tell me it is your pressure vessel which must be losing its charge of air and would explain the pressure drop

jimmy
March 2008