Cause of Boiler kettling? Pump?

[GnzYza]

Hi all,

I'm after some advice please. Im pretty much a novice on boiler issues but would like to see if any of you can help diagnose the problem before i seek professional help.

I have a fairly old back boiler system- baxi bermuda.

A while ago when the heating was turned on after a short time a noise starts to come from the pump next to storage tank upstairs. shortly after the back boiler also started to kettle and has been like that for a while. it would kettle then shut off, the pump would make a weird noise as if its seized and the converter inside is making a noise. anyway after a couple of weeks it blew a fuse- those 5amp one thats goes in the switch.

Accept my apologies for the bad terminology ,
i think the pump does need replacing, but is that the likely cause, or is that the symptoms of a dead pump?
Also can it be scale or some thing.
Any ideas or solutions much appreciated.

Thanks

 

[bster]

first thing to do is ..check that there is water in the system.

 

[ollski]

Yep sure sounds like the pump.

 

[corgiman]

first thing to do is ..check that there is water in the system.

good starting point

sheesh bster you are putting us old lags to shame

wanna job???

 

[GnzYza]

Hi guys, just as an update, i purchased a wilo gold a like for like for the old smc. but fitting it was a nightmare, the valve connections were welded on so it seemed. so i isolated the valves and cut through the caps with a hacksaw

just finished now, sounds a little noisy the pump, i let the air out and sounds ok and running smooth. just give it a day or two to be sure.

mind you even though the old pump was in a state it wasnt ceased.
Could be the converter within it that packed up?

 

[GnzYza]

since changing the pump my ground floor radiators don't warm but upstairs are fine. i've bled the radiators and pump?
any ideas?

Thanks

 

[Agile]

Whats this converter inside your pump?

 

[ChrisR]

Try "balancing" - see faq. Otherwise, could be a sludge problem.