Optoma offers excellent warranty coverage for the ZX210ST, with 3 years parts and labor on the projector and, due to its long life LED light source, 10,000 on the LED light source. While I did not see it expressly stated for the ZX210ST, Optoma multimedia projectors are also usually covered by Optoma’s Express Replacement service, which works as follows:
During the first year of the warranty, if a projector requires repair, the end-user calls Optoma’s toll-free number and Optoma will ship a refurbished unit to the end-user. The end-user then ships the original unit back to Optoma for a credit. The refurbished unit carries a warranty equal to the remainder of the existing warranty or 90 days, whichever is greater.
During the second and third year of the warranty, rather than providing a replacement unit, Optoma ships a loaner projector to the end-user for use while the projector is being repaired. After repair, the original unit is returned to end-user, who then ships the loaner back to Optoma for a credit.