the pump stays on after the heating has switched off?
Problem after changing ch pump on a grundfos pump plan?
Grundfos Selectric UPS 15-50 pump?
Replacement capacitor?
The pump appears to be operating when central heating is not on?
Turn dial which way to increase speed?
how can i stop my grundfos pump jamming ?
I have hot water overflowing into the loft expansion tank?
grundfos 15/50 pump ?
Problem refilling CH system after fitting Grundfos 15-50 130 selectric pum?
How can reduce the noise made by my Grundfos ups 15-50 pump?
water pressure dropping ?
is my c/heating pump working?
water is filling the header & expansion tank via the feed pipe to the pump?
my grundfix selectric wont stop pumping?