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Guide On How To Re-Pressurise Your Boiler

How to re-pressurise boiler

How to re-pressurise your Boiler

Bleeding a radiator involves releasing trapped air inside the radiator. Doing this helps improve the efficiency of your heating system. This guide will walk you through the safe process of bleeding your radiators and how to re-pressurise your boiler. If you have any concerns, please consult a professional for advice.

Guide how to re-pressurise your boiler

Keyless Filling Link

  • If the pressure gauge needle is below 1 bar, recharge the system.
  • Pull the blue lever down to begin filling.
  • Keep an eye on the pressure gauge.
  • Once the needle reaches between 1 and 1.5 bar, release the blue lever to stop filling.

    • Keyless filling link

    Integral keyed filling link

    Find the filling key and follow the steps to re-pressurise the system.

  • Firmly insert the filling key into the filling link, making sure the arrow on the key shaft aligns with the open padlock symbol.
  • Turn the filling key to the right until it stops. Ensure the key is locked and cannot turn further. The arrow should now point to the closed padlock symbol, connecting the two sections of the filling loop.
  • Turn the white knob to the left to allow water to enter the system.
  • When the pressure on the appliance facia pressure gauge reaches between 1 and 1.5 bar (zone A), turn the white knob to the right to close the valve. Avoid overtightening.
  • Turn the filling key to the left until it stops, aligning the arrow with the open padlock symbol, then pull the key straight down to remove it. Remember to store the key in the bottom panel.

    • Integral keyed filling link

    Are you noticing your boiler losing pressure on a daily basis?

    If your boiler is constantly losing pressure and you’re frequently topping it up, this indicates a problem that shouldn’t occur. Before searching for leaks in your system, check the pressure gauge while your heating is on:

  • Does the pressure gauge rise to a high level before your heating begins to cool down?
  • Is there a copper pipe on an outside wall that’s dripping or spraying hot water?

    • If you notice one or more of these signs, the expansion vessel inside your boiler may require recharging or replacement. This must be carried out by a Gas Safe registered engineer, This fault is common across all boiler brands. Boiler servicing should include checking and recharging the expansion vessel, so having your boiler serviced could resolve this issue.

    Need more help on how to re-pressurise your boiler? Get your boiler serviced by Andy Gas Southern, Get in touch with our friendly team.

    Gas heating and plumbing engineers in Portsmouth
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