I'd disagree with what A1 tec has said.
the pipes from your plumbing to the machine, normally screw straight onto the inlet-valve.....it's very unusual for a valve to leak (though not unheard-of)
therefore, the major leakage-potential is the hoses themselves that connect the machine to the taps. the plastic ends do get brittle with age and the hose loses it's "springiness" where the metal sleeve crimps it to the plastic end. They'll usually last 10 years or so if not disturbed,so it's safe to say they should last the life of a fixed-position machine.
if you move the machine frequently, check the hoses regularly. otherwise just make sure the house insurance covers the (very unlikely) flood from a burst hose.
old enough for wisdom, young enough to be compos mentis.