Vaillant eloblock menu locked

KorbenCZ · 2026-01-09T22:07:50+0000

Hi, I know I've probably screwed it up, but maybe someone will know "trick". I have eloBlock ve21/14eu II and had controller calormatic 350, switched to 430f. But this switch locked menu on eloblock. And now I cannot access menu no mater what I try. Need to activate external sensor. Connecting 350 back doesnt solve anything. AI is telling me only option is service tool from Vaillant, but I still have hope some trick might be there? thanks

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Vaillant eloblock menu locked

KorbenCZ

DIYnot Local

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