Hi all!
I am working on a Potterton Performa 24 Combination Boiler.
Intitially, I was called because it had lost all pressure and had subsequently shut down. There were tell tale puddles of water under the boiler, so I searched for a leak.
On the Grundfos pump, the two connections, one to a pipe and the other to the manifold (3.00 and 6.00 if you look face on to the pump) were weeping. The o-rings were pretty much fossilized and had gone square and brittle, so after the surfaces were cleaned thoroughly, I replaced the o-rings with a smear of silicone grease. The pipe connection is dry, but the manifold connection still leaks!
These o-rings are Potterton parts in their own little bag of twenty, so parts are not cheap pattern *hite.............
I rung the 'help' line and was told that there was nothing that could be done!
The leak did seal when the boiler fired up and got warm, expansion of metals and all that. But what happens when the thing cools? Do they seal by themselves over a period of use?
Another problem, there is another leak coming from the combustion chamber at the front just below the flame window.
Does this mean the heat exchanger is shot, or in need of........you guessed it, new seals?
Any help would be appreciated.
Best
Jarker
I am working on a Potterton Performa 24 Combination Boiler.
Intitially, I was called because it had lost all pressure and had subsequently shut down. There were tell tale puddles of water under the boiler, so I searched for a leak.
On the Grundfos pump, the two connections, one to a pipe and the other to the manifold (3.00 and 6.00 if you look face on to the pump) were weeping. The o-rings were pretty much fossilized and had gone square and brittle, so after the surfaces were cleaned thoroughly, I replaced the o-rings with a smear of silicone grease. The pipe connection is dry, but the manifold connection still leaks!
These o-rings are Potterton parts in their own little bag of twenty, so parts are not cheap pattern *hite.............
I rung the 'help' line and was told that there was nothing that could be done!
The leak did seal when the boiler fired up and got warm, expansion of metals and all that. But what happens when the thing cools? Do they seal by themselves over a period of use?
Another problem, there is another leak coming from the combustion chamber at the front just below the flame window.
Does this mean the heat exchanger is shot, or in need of........you guessed it, new seals?
Any help would be appreciated.
Best
Jarker
