A manufacturer's warranty is different from (and in addition to) your consumer rights with the retailer. The warranty can be more extensive than consumer rights or less extensive. However, it is frequently more extensive but time limited. For higher end appliances (including cookers, shower units, etc) it usually covers call out charges. So if your cooker blows up during the warranty you should be covered for a manufacturer call out to inspect and, if appropriate, repair or replace it. But if it is outside the warranty your "consumer rights" would not include the call out - that would be at the discretion of the retailer.
Some people find this when buying products from suppliers such as Screwfix.ie. For example, some Aqualisa showers have a 3 year manufacturers warranty in both the UK in Ireland. But in Ireland this only applies if the product comes via the approved Irish importer distributor (typically sold through main street bathroom suppliers).Although you may buy the product from Screwfix online it is actually sourced from the UK supplier and is not covered by the 3 year Irish warranty. Within warranty all callout charges are covered, as is labour, repair, replacement, etc. If it is out of warranty you are faced with disconnecting your shower, returning it to the retailer for inspection and possible repair, replacement, etc.
That is assuming you can assert consumer rights. These do not automatically cover 6 years in all cases - if this cannot normally be expected given the price and nature of the product and its normal usage, eg, your €7 mickey mouse watch is not "guaranteed" for 6 years under consumer law.