Discuss Noisy grundfos pump central heating in the USA area at PlumbersForums.net
Thank you.yes probably need a new one bearings going
Is the pump in an airing cupboard with a hot water cylinder? If so and depending on the age of the system its most likely a fully pumped system, at least it should be. This means the circulating pump is used on both CH and HW demand. If you've isolated the system to prevent the noise then turn on your immersion heater
Is the pump in an airing cupboard with a hot water cylinder? If so and depending on the age of the system its most likely a fully pumped system, at least it should be. This means the circulating pump is used on both CH and HW demand. If you've isolated the system to prevent the noise then turn on your immersion heater
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