Potterton Performa 28i

[mineralf]

When I turn the hot water on it runs cold.CH is OK.Sometimes if I turn the boiler off then reset it again the water runs hot,but when I run it later on its cold.

 

[baxpoti]

you need a 248734 pressure differential valve

 

[Agile]

I dont know what part that is but the diaghraphm alone can usually be replaced but its worth replacing the pin gland at the same time as these always leak.

Tony

 

[ahankins]

Perfect timing......I have a leaking pin gland (the one which faces out from the boiler, which unless I'm barking is the DHW). So, can I just replace the gland or does the whole lot need changing.

This appears to be the gland:
http://www.abcotuk.co.uk/Product.asp?ProductId=P599&Catid=c2

This boiler has almost cost me it's purchase price in parts (PCB, thermocouple and now this). Is it time to bin it?!

 

[baxpoti]

This boiler has almost cost me it's purchase price in parts (PCB, thermocouple and now this). Is it time to bin it?!

If your wasting money on a thermocouple for this boiler you must be barking and have more money than sense......

There's no thermocouple in a 28i

 

[ahankins]

....maybe a terminology thing. Temperature sensor, looked very like a thermocouple. That was boiler engineer fitted to fix the boiler cutting out over temp (I think, was a while ago).