Vaillant Ecotec Plus 424 - which PCB?

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21 Feb 2021
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Hi.
I'm looking for a PCB for my Vaillant Ecotec Plus 424,
GC 41 044 74.
I don't want to get it wrong!
Vaillant Part No: 0020237689 is listed as correct but suppliers are saying, NOW USE 0020273087. But this new one does not seem to list my boiler on supplier websites.

Can anyone advise me?
Thank you.
 
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