Couldn't wait for the weekend, I noted here in another post a week ago my c/h pump was getting a bit noisy, new pump sourced ready, but tonight the pump got really quite noisy. That's it, I'm going in
So it's often not as easy as it should be...this was no different. Changed the electrical connector, but the big nuts on the gate valves either side are siezed solid, my grips wont touch them. Call my son, gas engineer, request bigger grips, he turns up and yes the nuts are solid, no problem, I will cut them off he said. Up into the loft to put a bung in the cold water feed tank, he comes down and tells me, the root of your problem was the tank was empty so your pumps been struggling. Water tank ball valve freed up, I will have to watch that
So, junior hacksaw a slot in each nut the prise open with a screwdriver then they come off easy. Pump changed, connected, tested, all good.
Boiler is a Glow Worm, we estimate 23 years old, never (touch wood) remember having a single problem with it, just the usual 3 way valves and pumps.