The process of bleeding a radiator is to let out any trapped air that is inside the radiator. Bleeding your radiators will improve the efficiency of your heating system. This guide has been designed to guide you through the process of bleeding your radiators safely, should you have any concerns, please seek professional advice.
Keyless Filling Link
If the needle on the appliance pressure gauge reads less than 1 bar, re-charge the system.
Pull the blue lever down to start the filling process.
Monitor the pressure gauge.
When the needle reaches between 1 to 1.5 bar on the gauge, release the blue lever to stop the filling process.
Integral keyed filling link
Locate the filling key and follow the instructions for re-pressurising.
Push the filling key firmly into the body of the filling link, ensuring the arrow on the key shaft lines up with the open padlock symbol.
Turn the filling key to the right, to the stop, ensure the key is locked and that it cannot still turn. The arrow should line up with the closed padlock symbol. This bridges the gap between the two sections of the filling loop.
Turn the white knob to the left, this will allow water to fill the system.
When the pressure, shown on the appliance facia pressure gauge, reaches between the 1 and 1.5 bar marks (zone A), turn the white knob to the right to close the valve. Do not overtighten.
Turn the filling key to the left, to the stop, so that the arrow lines up with the open padlock symbol and pull the key straight down to remove. Please remember to store the key in the bottom panel.
Does your boiler lose pressure daily?
If your boiler is continuously losing pressure and your topping your boiler up regularly this should not be happening. There is a key thing to check before looking for leaks on your system, Check your pressure gauge when your heating is on.
Does your pressure gauge reach high pressure before your heating starts cooling down?
Can you see a copper pipe on the outside wall dripping or spraying hot water?
If you can see one or more of these symptoms your expansion vessel inside your boiler may need recharging or replacing. This must be carried out by a Gas Safe registered engineer, this fault is very common across all boilers brands. Boiler servicing should include to check and recharge your expansion vessel, so this fault could be repaired by getting your boiler serviced.
Get your boiler serviced by AB Plumbing & Heating, call our friendly team on