Potterton Performa 24 combi boiler on off cycling problem?
My Potterton Performa 24 combi boiler ignites correctly but only stays on for a minute initially then switches off then re-ignites only for seconds then goes off again for long periods. This is the same for DHW and heating - no pipes get hot enough to cause a temperature sensor to switch. After following fault finding guide the PCB was indicated as faulty - after changing the PCB the fault is exactly the same - Any Ideas please
I have a similar problem,but my heating tends to stay on for longer,but my hot water barely works,its only luke warm for a few minutes,then runs cold!
Does anyone know what the problem is,dont trust my plumber!
Brian, February 2010
sounds like the flow switch
mark, June 2009
remove the heat exchanger and thoroughly cleaned it. refit and bleed the system of air and restart.
michael C, November 2008
Is it exactly a miniute? time it!
could be flame sensor, dont know much about these boilers.
flame sensor checks that there is a flame before letting more gas through to the burner.
think you need a corgi engineer, as there are fsd checks on the gas valve
