Hi
Can anyone tell me what current part numbers relate to the Main PCB and Interface Card PCB on the original 24 hxi boilers... not the Ultra range..
My boiler has part numbers starting with 4000 and apparently this changed to 2000 and also 00200 ???
I will call GW in morning.
I am hoping that a complete control panel including Interface card with part number 2000802640 new number 0020027897, plus main pcb will work with my 24hxi.

Boiler been great until now.

Andrew, November 2012