Search results

It sounds to me like the system hasn't been balanced properly, or has become unbalanced. 1. turn all of the lockshield valves off (the non trv valve on the radiators) and the central heating on 2. go to the furthest radiator from the boiler and open the valve slightly until the flow or return...

As with most combi boilers, the baxi 80e and 105e have an automatic air vent installed inside them. If the pressure in the boiler/system has dropped to zero, when you re-pressurise it it will fill up but also air will be forced out of the vent. You will need to keep re-pressurising it until the...