N4 Gas Blog

Topping Up Your Boiler

Note: Not all boilers require “topping up”. If in doubt, ask us. When to top up… Pressure gauge reading zero bar Boiler displaying a low pressure fault code, or possibly overheating Everytime you bleed radiators When you bleed upstairs radiators and no water or air comes out Rushing water noises in your system Everytime a […]

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