Sorry if this has been answered before, I'm sure it has really but can't find it
It's nothing special, an arrosage timer thingy, about 30€ which has gone wrong. Anyway the shop says its the manufacturer to fix it (replace it surely), and, quelle surprise!, vice versa, the manufaturer says it's the shop.
So who is it who has to honour the guarantee?
Sadly the good old Sale of Goods act doesn't apply, more's the pity.
As an aside, I think the reason why customer service is often better in UK is because of self same act, as well as the obligation of credit card companies to refund you if the shop won't (and actually the card company just deduct it from the shop anyway). So it's definitely in the shop's short term interest to do the right thing.