DVDR3380 - Switchs off showing "TIMER" in display

My DVDR3380 has packed up. when I switch it on it goes through “startup” then switchs its self off showing “TIMER” in the display.

As far as im aware there is no timer recordings set up

Any one else had this problem ???
can someone also tell me how to do the “factory reset” and is this the same as leaving it unplugged for 4 days ???