Vaillant Boiler Pressure Going Too High

I had a job to do today on an older Vaillant Ecotec combi boiler. The system pressure kept going really high when the heating was on. But when the heating cooled down, the pressure went really low and caused an F22 fault. What Causes Boiler Pressure To Go Really High This is a common fault […]

The post Vaillant Boiler Pressure Going Too High appeared first on Thames Boilers.



from Blog – Thames Boilers https://ift.tt/2OQnJ3Z

Comments