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Update: DHW & CH working fine this weekend - but I have done nothing to the system! But what I have noticed is that if the temperature LED's on the front work properly then the CH will work, and the pump turns on and off properly. If the LED's are unlit the boiler does whatever it likes...

Hello Tony, this guys is apparently a specialist heating engineer, but then who knows these days, you can call yourself anything! He said that the air pressure switch is duff and that he will fit a new one. This is info he got from the Britony help line. He tried shorting this switches feed...

Agree that intermittent problems are the worst to fix. The DHW works all of the time though at max flow it of sometime not too hot (say for filling bath) but if you back off the flow rate a little it heats back up. DHW works with the power led on, flame light constantly lit and no LED's lit...

Hello, Here my current, rather chilly situation. Setup is a Britony 80 Combi boiler with a Potterton digital control unit in a standard 3 bed semi. System is 7 years old (we have owned the house for 2) and it had a air separator leak earlier this year that was solved by fitting a new air...

Hey Ollski, checked the PCB after a small dismantalling sessions and the lhs switch was over to the right (looks as though it had been knocked by another unit in the electical box) so I flicked it to the left the match the RH switch and it seems to have done the job. Many thanks, you may have...

Don't worry Tony, Im open to suggestions of things to try, it's all a matter of elimination these cases, what you you suggest I try?

Hello all, Just bought a new place that has Brittony 80 combi boiler. It provides good HW and CH to the house but there seems to be an issue with the pump. When the selector switch (lhs of the front panel) is set to only HW it works fine. But when it is set to HW and CH the pump (I...