Chosen Solution

My RCA LED24C45RQ has a red light (indicating the TV is off) when I press the power button the tv turns on for not even a second and right back off. What should I do? @oldturkey03

Darius Bradford  that is usually caused by a bad power board. Post some images of your boards with your question so that we can see what you see. Adding images to an existing question

You can open the TV if possible and check for any blown capacitors. If you happen to find any, make sure to mark the voltages for each cap that has burst and purchase new capacitors. Desolder the old caps and replace them with new ones. There is a very good chance that if you find blown caps that they could be the problem. Hopefully this helps!