We have just had some rework to our thermal store now theres an issue when the boiler pump starts up theres a weird vibrating resonating noise which starts quiet and builds. If I feel the top vent pipe its vibrating. If I turn off the boiler pump then back on it seems to stop the noise and vibration.
Not nice though at 5.30 am though any ideas what might be? Grundfos pump is about 2 years old thanks.
Not nice though at 5.30 am though any ideas what might be? Grundfos pump is about 2 years old thanks.