Gas Boiler Help & FAQs

Useful Help & Advice for Worcester Bosch Gas Boilers

Find out how you can resolve minor issues with your gas boiler.

Having the right information at hand can often resolve the most basic gas boiler issues, saving time and money by avoiding the need for calling out an Engineer.

While more serious issues require an engineer’s expertise, we provide answers on simple tasks such as repressurising your system below…

8000 lifestyle boiler controls

How to Repressurise a Heating System with an Internal Filling Key

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The video guides you on how to adjust the pressure in your heating system using the internal filling key on your Greenstar gas boiler.

How to Repressurise a Heating System with an External Filling Hose

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This video instructs you on how to increase the pressure in your heating system using an external filling hose.

How to Bleed a Radiator

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This video shows how to bleed a radiator to fix heating issues such as a “gurgling” sound and cold radiator tops by releasing trapped air.

Instructions on Thawing a Frozen Boiler Condensate Pipe Safely

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This video provides homeowners with guidance on safely thawing a frozen condensate pipe, which can occur at temperatures below 0°C and impede boiler operation, and how to prevent future occurrences.

Handy Greenstar Boiler Checks

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Easy Inspections for Your Worcester Greenstar Gas Boiler, including boiler pressure, room temperature, and error codes.

Instructions for Restoring Radio Frequency Link Between Boiler and Thermostat

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This video demonstrates how to restore the radio connection between your thermostat and boiler.

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