Help on Heating

[Russell Mark]

Hope you can help me.
I have a gravity fed central heating system which I have drained to permanantly remove a radiator and pipework to it. I have capped the pipes and re-filled the system but now have no hot water or heating.
I have bled the system through all remaining radiators but I am only getting hot pipes to the pump and mid position actuator. The hot water cylinder is cold.

Can you suggest what may be the problem.

The boiler is working but the pump feels very hot and is making an intermittent groaning sound.

 

[Softus]

There are many possibilities.

For example, you might have a blockage in the cold feed from the F&E cistern. Check that the water level in the F&E goes down when you drain the system. If not, then search for "cold feed blockage" and you'll start to feel like you're a member of a large club!

You might have an air lock - go looking for all bleeding points on top of the boiler and on the primary circuit near the cylinder. Also, make sure that you vent all rads without the circulating pump running.

 

[Russell Mark]

Thank you for your reply.

It was an airlock...I managed to clear it by bleeding all points and switching the pump to full.

Regards

Russell.

 

[Softus]

Well done Russell! Thanks for posting back the outcome