My CH system was drained and the rads removed when plastering about 2 months ago. They were replaced and the system filled back up. HW has been working ok since then, but I have hardly had to put the CH on until now.
Last night I put on an upstairs rad which had not been turned on until now and that seems to have messed it up...now the boiler clicks on but clicks off again a few minutes later with the light flashing to say there is insufficient pressure in the CH system. It then won't click back on for half an hour or so.
The actual boiler pressure is fine btw, between 1.5 and 2 bar, so it isn't that. I have been around and bled the rads and re-filled. It's a Ferolli Modena 80E if that helps.
Last night I put on an upstairs rad which had not been turned on until now and that seems to have messed it up...now the boiler clicks on but clicks off again a few minutes later with the light flashing to say there is insufficient pressure in the CH system. It then won't click back on for half an hour or so.
The actual boiler pressure is fine btw, between 1.5 and 2 bar, so it isn't that. I have been around and bled the rads and re-filled. It's a Ferolli Modena 80E if that helps.
