Warranty - Tile Advice

[Mozotya]

What's your tiling question? Pictures can be added.
Hi, kitchen wall tiling has done last year October. After half year 3 tiles cracked in one line. I attach pictures...
My question is, that what was the problem? The tiler did any mistake, or any other problem? Does the tiler have to replace them under warranty?

 

[Ajax123]

not possible to diagnose the issue here. It could be any one or a combination of many things.

no the tiler is not bound to replace them under warranty unless his warranty specifically says he does. The tiles and the installation should be fit for purpose and "reasonably robust" it would however be sensible to investigate with the tiler what the problem is so it can be resolved.