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Mend Grundfos UPS 15 Circulation Pump Heating

Grundfos UPS 15 Circulation Pump Fault?

Our Circulation pump has become very noisy over the past few days. The radiators seem to be working ok and the hot water is still being provided but the pump is making this aweful clockwork like noise. Any suggestions please
Paul

Paul Francis
January 2011
GrundfosGrundfos UPS 15Heating, Home Heating SystemsCirculation Pump Heating Grundfos
I sometimes get this when restarting a system, but thats when its not pumping . have you bled the pump?
euge

plumbersw15
January 2011

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