need help. first the TV is only about a year and half old, haven't ever changed the bulb, this just started last week, i could be watching tv for about 45 mins and it shuts off and red light flashes, i get code 17 which i still haven't been told what it is, Mitsubishi said install the new firmware i did TV still does the same thing, i need help anyone please help me. what should i do
After new firmware install, try a hard reset to reboot the entire thing than try again. You'll need to check the manual OR call 'em......on how to do thie procedure. Does mitsubishi or their service / call in guys KNOW what code #17 is? Does the manual say? That's the obvious first place to start.
An easy thing to check for is dust. with power OFF and a cool set, pull the lamp inspection cover and look for dust. Look on the back venting of the set and than vacuum all the dust you find. Sometimes a clog to a fan will do stuff as you describe.