Hi all, I hope you can help. I've just drained down an open-vented central heating system to fit a new radiator.
I've refilled the system, bled all the rads, and bled the pump. I've tried to re-boot the system but can't get any heating. The pump is running, the 3-port valve open (even done it manually to make sure), and the thermostat turned up and the controller set to 'heating on'. The boiler however isn't firing up, so it's just cold water getting pumped round.
Is this a boiler issue, somehow caused by an airlock or something, or what?!
Please help
I've refilled the system, bled all the rads, and bled the pump. I've tried to re-boot the system but can't get any heating. The pump is running, the 3-port valve open (even done it manually to make sure), and the thermostat turned up and the controller set to 'heating on'. The boiler however isn't firing up, so it's just cold water getting pumped round.
Is this a boiler issue, somehow caused by an airlock or something, or what?!
Please help