Unexplained noises?
Grundfos UPS 15 45 x18 central heating pump?
how can I fix my old glow worm central heating boiler model 65-80?
Grundfos Selectric 15-50 - noisy when on, intermittent banging?
Grundfos Selectric UPS 15-50 pump?
Problem refilling CH system after fitting Grundfos 15-50 130 selectric pum?
Hot water from boiler filling expansion tank?
I have hot water overflowing into the loft expansion tank?
Can I stop the start-up noise from my Grundfos UPS 15-50?
Replacement capacitor?
water is filling the header & expansion tank via the feed pipe to the pump?
How can reduce the noise made by my Grundfos ups 15-50 pump?
the pump stays on after the heating has switched off?
grundfos MK 2 15/50 x 18 playing me for a fool?
baxi 105 HE boiler problem?