cold rads Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[htg engineer]

What make and model of boiler ?

You could always remove the pump and check the impeller, check for debri's etc - trying not to make it obvious you have remove the pump head (don't mark bolts etc) if you can get one for nowt - try a new pump.

I would only get the manufacturer out if -
you're sure the boiler is at fault, the system was flushed and inhibitors were added - if they weren't then they may charge you as it might not be a faulty pump that caused the pump to fail.

If you think changing the valves would help - do it, wont take long or cost much.

But with F22 flashing up - even just briefly and the radiator problems I would try a new pump.

htg

[bazza]

hi htg engineer. i av got a pump which came off a system fed by a back boiler, the pump works ok my uncle just changed to a combi so i took the old pump thought it might come in handy lol) if i take head of that will it be suitable for my boiler its a vailant? cheers bazza