N4 Gas Blog

Worcester Bosch Fault Codes

With Worcester Bosch boilers making up a large percentage of calls that we receive for both breakdowns and servicing, we thought it would be a good idea to share some handy tit-bits by publishing the most common fault codes that are encountered on some of the more modern Worcester Bosch heating boilers. A1 = Pump […]

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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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Vaillant Fault Codes

As Vaillant approved engineers and with Vaillant being one of the most popular boiler makes that we install, should your boiler develop a fault, it’s likely that it will display an error code. All of these codes can assist us when your first call us and ensure that we get the right part and the […]

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