ive got a grundfos alpha pro that my plumber fitted to replace my old pump, which he said wasn't upto the job when he fitted an unvented system and moved the pump upstairs. well its been running for a couple of months now, on and off as we are out most of the day, and tonight its decided to start making a grrrrr noise. I felt the pump housing and its almost as if the shaft is rattling against the sides causing vibration. I turned it off and then on and it isn't doing it now.
im wondering if the problems ive had with the boiler kettling are connected.
is the pump fixable or is it time to bin. if I bin it which pump should I replace it with?
im wondering if the problems ive had with the boiler kettling are connected.
is the pump fixable or is it time to bin. if I bin it which pump should I replace it with?