Hi all, I see this question has been asked before but I haven't found a full answer yet, so hoping someone can help.
I have a Potterton Performa 24 combi boiler which provides CH even when the dial is in the 'CHW only' position.
Following several other threads advice the entire manifold and differential valves assembly has been replaced and also the CH microswitch but the problem persists.
What I have noticed is the CH Pressure Differential Valve pin is always activated/extended once the dial is turned on, so pushing the microswitch. Is this the normal position for the pin? Is this pin just confirming there is adequate pressure to the PCB?
Im now thinking if everything is firing and valves working as they should then it must be a PCB problem.
Any thoughts or advice will be much appreciated.
I will be getting a professional to fix, I just wanted to figure it out the issue first.
I have a Potterton Performa 24 combi boiler which provides CH even when the dial is in the 'CHW only' position.
Following several other threads advice the entire manifold and differential valves assembly has been replaced and also the CH microswitch but the problem persists.
What I have noticed is the CH Pressure Differential Valve pin is always activated/extended once the dial is turned on, so pushing the microswitch. Is this the normal position for the pin? Is this pin just confirming there is adequate pressure to the PCB?
Im now thinking if everything is firing and valves working as they should then it must be a PCB problem.
Any thoughts or advice will be much appreciated.
I will be getting a professional to fix, I just wanted to figure it out the issue first.
