Vaillant EcoTec plus 428 'Con' fault code

[drives]

Hi all,

As above, I have an Ecotec boiler and was fitting a new central heating pump today so was isolating power on and off etc.

The actual installation went ok although I have now getting the above fault code which I understand might be related to switching off and on again potentially? I was obviously rewiring the pump via the connection thing in my airing cupboard and therefore was wondering if the new CH pump installation, and/or wiring in this box may be the cause of my problem but don't really know where to start?

Trouble is I've called a couple of heating engineers but no-ones available, as to be honest something like this I'd just get a professional in but that looks like it is going to be a bit of a delay with no heating. Not ideal....therefore any help would be much appreciated.

 

[CBW]

Usually means new pcb, but i suppose you may have disturbed or incorrectly wired something. Pretty photo, but doesn’t give much information. Can you post photo of pump and wiring center (open) together?

Edit: Con short for connection, but usually relates to the display.

 

[drives]

Thanks yes photos attached- somehow though it seems to have sorted itself out and suddenly all sparked into life. Not sure if I disturbed any wiring as you say. Will keep an eye on it....