I have an unvented WB 24Ri in my loft on an unvented system feeding an unvented cylinder with s-plan plus controls.
I have fitted a new radiator and refilled the system. All rads are bled. 1.5bar system pressure
The pump is running, but noisy, the AAV is not blocked, but the boiler won't stay lit for more than a few seconds. I believe there is a airlock in the cylinder coil and as advised by my installer the last time this happened I have been pulsing the pump to shift the air. Some air has escaped from the AAV but very little.
Last time the problem fixed itself over a week when the pump was left on constantly, house unoccupied.
I have been pulsing for 1.5 hours, and no change...
Any advise welcome.
Thanks
I have fitted a new radiator and refilled the system. All rads are bled. 1.5bar system pressure
The pump is running, but noisy, the AAV is not blocked, but the boiler won't stay lit for more than a few seconds. I believe there is a airlock in the cylinder coil and as advised by my installer the last time this happened I have been pulsing the pump to shift the air. Some air has escaped from the AAV but very little.
Last time the problem fixed itself over a week when the pump was left on constantly, house unoccupied.
I have been pulsing for 1.5 hours, and no change...
Any advise welcome.
Thanks