My y65 has a new bulb when I turn it on yellow light come on within a few seconds and a check air flow message come on the screen tv then turns off if I wait about 30 seconds I can turn it back on again same results if I continue trying some time I get no problem and can watch tv for hours

Contact any service technician.

The lamp needs to be replaced. It's on the back and easy to do. I replaced mine about 3 months ago and it was about $182.00. Hope this works, I know it's hard to fork out that kind of money at this time but once you do the TV will be as good as new. Take care

Common Repairs
For the following models: WD-52631, WD-57731, WD-65731, WD-Y57, WD-Y65, WD-57732, WD-65732, WD-57831, WD-65831, the most common repair problem stems from television shutting off almost immediately after it has been turned on accompanied by the message, "TV will shut down in a few seconds. Please check if the air flow is blocked." According to the Mitsubishi website, this issue is caused by a loose connection as a result of a faulty thermal sensor. For models: WD-73727, WD-73827, WD-73927, WD-73732, WD-7383, the most encountered repair problem has been in relation to the optical engine. Another common situation consumers have encountered is failure of the TV to turn on along with unceasing flashing of the green power light. The solution for this problem, caused by the DM board, will vary by repairman. Consumers have also encountered issues with moving vertical or horizontal lines appearing on the screen which can either be due to problems with the capacitor, light engine, or formatter board. Make sure all bad caps are changed.

sounds like you need a new bulb, mine is doing the same and the lamp light is coming on.

tv is overheating.  possible that fan not working or temperature protection circuit faulty.  check fan for excessive dirt first.  could be as simple as cleaning the fan

The fan is shorted and might be dead.The projection bulb been in the tv and used for the last 3 years?The projection bulb,life span are over.Require a new projection bulb.

ok what you have there is a faulty thernal sensor nitisubishi has issuued a bullitten to serice centers so check with local service center the repair might be covered under warennty

If the set is only 3 1/2 months old, you should still have warranty coverage. Opening up the unit will void the warranty, so don't open up the set. Call for warranty service. In all probability, the air flow sensor is defective. The message you are seeing is a result of the air flow not being detected or not sufficient. In any case, this is a covered problem and should cost you nothing to fix.

Dan

have you checked the air filter located on the side of the unit? Also can you hear the fan start as soon as you plug the set in?

had the same issue, we even had a personal fan blowing air behind the tv and the message always comes up right when we turn on the set and the tv turns itself off after about 30 seconds. did some research and it turns out there is no air flow problem just a faulty temperature sensor inside the set. Mitzubishi knew about this since 2006 but didn't really aknowlege it until more recently, they admitted it was a problem with the sensor and are now extending everyone's warenty by 2 extra years so if you got it with a year warenty and you bought it less than 3 years ago, call mitzubishi's 800 number and tell them the temperature sensor needs to be replaced, they'll get you in touch with the nearest service center and a service man will come out and replace the sensor at no charge for parts or labor. hope this helps