(2-part post):
To answer this question properly, it's important to separate your statutory rights from the warranty agreement.
Even if you've not got any warranty, any item you purchase should be expected to last, without any faults occurring, for a reasonable period of time. In most cases you're entitled to a repair or replacement if a problem develops due to an inherent fault (such as poor workmanship or the use of poor quality components) within 6 years from the date of purchase. The provision of such a repair or replacement should not leave you out of pocket.
Unless there is evidence to the contrary (such as obvious proof of misuse) there's an automatic legal assumption that any fault which develops within the first 6 months from the date of purchase must be due to an inherent fault. Thereafter it's up to the purchaser to show, based upon the balance of probabilities, that the most likely cause of the problem is an inherent fault.
As stated above, any remedy provided under your statutory rights should not leave you out of pocket. Also, your statutory rights are with the retailer, not the manufacturer.