Based on installing a new A-rated condensing boiler in England, Scotland and Wales with a programmer, room thermostat and thermostatic radiator controls (TRVs) in a gas heated detached home from an older G-rated boiler with a programmer and room thermostat. Figures are based on fuel prices as of October2023. Savings will vary depending on the size and thermal performance of your home. Source: Energy Saving Trust. I have a Worcester Greenstar cdi classic boiler and it's got water pouring out the filling key tube.

Another cause could be the expansion vessel has lost its air and needs to be recharged or replaced.A keyhole for a plastic key with a white square knob to turn: This knob will need turning like a tap to open and close.

Low boiler pressure can be fixed easily by topping the pressure up, if you have to keep topping the boiler pressure up, you have a problem that needs to be fixed. Worcester Boiler Keeps Losing Pressure If you need to repressurise your Worcester boiler once or twice a year I wouldn’t worry about it as it’s such a small leak that it’s barely noticeable. Worcester Boiler Pressure Too High Did you know that some of the best combi boilers such as the Worcester Bosch 8000 have an intelligent filling system which means it automatically monitors and tops up the water pressure when required. Boiler filling loop not working Not every boiler is the same, so the process may be different for each machine. We’ll be exploring a few different methods to repressurise a boiler so you may prefer to skip ahead to the relevant section of this guide to save time. Similarly, bleeding your radiators can lead to a loss of boiler pressure, so it’s important to re-pressurise your boiler afterwards.A filling loop will be built in on the bottom of your boiler on most modern and small combi boilers, but there could also be an external filling loop on the pipework.

Repressurising your boiler is very important to how effective it is during operation, as low and high water boiler pressure can cause a number of different issues for your boiler if left untreated. We are proud of the quality of our refurbished parts and they come with 12 months replacement warranty. Your receipt will be the proof of warranty and please keep them somewhere safe.Photo is attached - the fill key is the white plastic T-shaped key, the other valve is the grey knob to the right of it. Do not open both filling loop valves fully straight away as the water pressure in the house might be too much for the boiler and cause the boiler pressure to shoot up too much. When installed by a Worcester Bosch Accredited Installer with a Greenstar System Filter. The Greenstar 1000 and Greenstar 2000 guarantee is available as standard to both Excelerate members and non-WAI's, when fitted with any brand of system filter. Terms and conditions apply.