Baxi 28 HE E168 which PCB?

I have the dreaded E168 and assume from everything I've read I need to replace the PCB, my question is, are they all the same? I have found quite a few online that say they are for my boiler but they seem to have a variety of part numbers, will any listed as fitting my boiler be okay?
Sleaford John, April 2012


done
Think I may have figured it out, I've had a look at another couple of sites...........

5120218 – Platinum Combi
5120220 – Megaflo 28HE
5120221 – Duotec 28HE

Mines a Platinum Combi so I assume it'll be the 218.

Sleaford John, April 2012
link Click here to see other fixes for Baxi E168.