That sucks. Send it back, I guess. HKs do seem to have pretty high "out of box" mortality (not like I have bought a lot of receivers but...) but once past that they seem to run forever.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8