Samsung hln617w won't turn on fans run lamp and temp light go on

It sounds like the main power supply has a bad capacitor. its a typical issue with a lot of electronic. look on the main power board that the outlet cord comes in to the TV and check all the cylindrical components for swelling, leakage, or singe makes.

Projection TVs require special knowledge and tools to diagnose and repair issues. You will need to take it to a TV repair center.

Remove lamp and inspect the color wheel to see if missing pieces or shattered---it will also just before failing give a high pitched or fan like sound and if running too slow or not at all instant shutdown happens.

Its also possible if you bought a GENERIC bulb--and used original cartridge the new lamp is bad.

It's not the lamp, most of the time they suspected it and the fan gone to malfunction when encountered this kind of symptoms but the fault came from the color wheel. You have to replaced it to resolve the issue.

Red light comes on but then the tv is playing but after about 3 hours it just goes out but I can still hear the sound then if I go back after about 4 to 5 hours if I turn it on it plays no problem. Now the lamp just went. I think before replacing the lamp maybe I should replace cooling fan also.

this model number do not use lamp ?????????

Had similar problem. Thought it was the lamp. Examined old lamp but it appeared to be good. Ordered a new one anyway. Changed the lamp but the TV screen would not come on. It would make the usual noise as it was going to come on normally but it would cycle 3 times & then turn off. The LED lights in the front panel would indicate a defective lamp. Then read about the ballast. Changed the ballast & still same problem. Tried starting the TV without the lamp installed & noticed that the color wheel did not spin. Removed old color wheel & discovered it was broken. This appears to be the cause of all of my problems. I wish I new earlier of the test-turn on the TV without the lamp being installed & check to see if the color wheel is spinning. Would have save money on the lamp & ballast.

The lamp is finished. Order a new lamp using the code on the side of the TV. Remove the lamp door on the back of the TV (4 screws) and then remove the lamp (1 screw). Have a look at the lamp... is it damaged? See my tips & tricks if you want to learn more about the lamp.

Sounds like it is overheating. It has a sensor that monitors light engine temp and causes a shutdown. Possible causes are:
- dirty ventilation fan filters.
- cheap lamp that makes too much heat
- faulty temp sensor (I don't think this model is known for this)