Recent content by Almi

After replacing the pump (maybe not needed, but it was noisy) and the boiler thermostat it all works fine again. I guess the thermostat was initially stuck on (so the boiler overheated and created all that steam) and later was stuck off (so the boiler would not fire up). Thanks for all your...

Thanks for your suggestions. It looks like the thermostat is not working. When I short across it the boiler fires up. So I have ordered a new one - will let you know if it works.

It's a Glowworm Ultimate 60 CF. Pretty old, but I could really do without replacing it just now!

Hi again I just finished changing the pump, but the system is still not working. The boiler won't fire up now. The pilot light is lit. The room thermostat is calling for heat. The pump is running. The valve is moving between 3 positions according to controller settings. Any ideas? Many thanks!

@CBF - thanks for that. It would seem odd to get such a dramatic failure from a broken pump. I'll check the boiler stat too.

No, the ball valve does work. It has filled up ok again now. I think either the heat from a steam jet at the ball valve stopped it working during this problem, or the system was boiling off water about as fast as it filled (I know that seems unlikely). It was quite hard to see before as there...

Thanks. Would that explain all those symptoms. I will be very pleased if so. And have a new pump in by tomorrow night!

Hi I just got home to some alarming problems with my central heating. Can anyone point me in the right direction for what has happened to it? Symptoms: - very noisy clunking and gushing noises from upstairs radiators (hot) - silent and cold downstairs radiators - slight smell of...