The Runco LS5 come with a a two year parts and labor warranty called RuncoCare.
Of course Runco is well known for customer support, and offers additional support programs in conjunction with their trained dealers. RuncoCare support lines are open 24/7!
RuncoCare also includes a 1000 hour lamp warranty, and one way 2nd day freight.
The company also offers Runco RedCarpet extended care service.
While two years is pretty typical out there, I suspect that most Runco owners opt for the more comprehensive RedCarpet care program in conjunction with dealer support. The couple of Runco dealers I know tend to be a bit fanatical about support, and are a key part of the process of keeping their clients up, running, and happy.