Having installed this system just before the summer, I put all the issues I was having behind me for the summer (like temperature overshoots and boiler firing up every 10 minutes for no reason whatsoever) and have enjoyed months of simply heating my hot water without any problems.
Now we've started turning heating back on again, my boiler is locking out whenever we seem to have the heating on. I have a 13 year old Potterton Suprima 40L and yes, the PCB has been replaced (following on from the problems and appearance it made on BBC Watchdog a good few years ago).
However, my boiler is now locking out pretty much every day when we are using the heating. I "think" it seems to be when the radiators have reached room temperature and have, or are closing. For example, I'm writing this now because I just used the "Quick Action" to turn heating off and boiler locked out about 3 minutes later. I have a S-Plan system so have separate valves for HW and CH.
Annoyingly, we had a plumber here for an hour waiting for it to cut out, and it did so 5 minutes after he left !!! He's checked the pump, circulation, boiler / heat exchanger looks clean so he's basically said he has no idea what could be causing it, especially having watched boiler for an hour going through normal heat cycles.
The plumber has suggested maybe flushing the boiler to clean it as a last resort. Failing that, he's pretty much suggested replacing the boiler as it's the only thing he can suggest.
Does anyone have ANY ideas. As I said, HW on its own is fine. CH on its own, or CH with HW it locks out the boiler??
Just to add, boiler seemed to cope on old system, so it seems to be something this annoying Evohome system has introduced.
Now we've started turning heating back on again, my boiler is locking out whenever we seem to have the heating on. I have a 13 year old Potterton Suprima 40L and yes, the PCB has been replaced (following on from the problems and appearance it made on BBC Watchdog a good few years ago).
However, my boiler is now locking out pretty much every day when we are using the heating. I "think" it seems to be when the radiators have reached room temperature and have, or are closing. For example, I'm writing this now because I just used the "Quick Action" to turn heating off and boiler locked out about 3 minutes later. I have a S-Plan system so have separate valves for HW and CH.
Annoyingly, we had a plumber here for an hour waiting for it to cut out, and it did so 5 minutes after he left !!! He's checked the pump, circulation, boiler / heat exchanger looks clean so he's basically said he has no idea what could be causing it, especially having watched boiler for an hour going through normal heat cycles.
The plumber has suggested maybe flushing the boiler to clean it as a last resort. Failing that, he's pretty much suggested replacing the boiler as it's the only thing he can suggest.
Does anyone have ANY ideas. As I said, HW on its own is fine. CH on its own, or CH with HW it locks out the boiler??
Just to add, boiler seemed to cope on old system, so it seems to be something this annoying Evohome system has introduced.
Comment