Hello, and sorry you're having problems. We are now connected on this website- which saves you money over having a Tech come to your home, and in many cases we can fix the problem you're having. In other cases, these things do require additional parts to fix. But I can help you with that as well.
The TV is blacking out because of a faulty component. There's no settings that prevent or cause a TV to black out. So, it's either caused by a faulty Source (meaning the cable/SAT box, or the HDMI connecting cable) or a failure with the TV's "backlight circuit"- which is what provides the light to the screen.
In order to narrow this down, I need you to grab the original Haier remote and press MENU, WHEN the screen is blacking/blacked out and let me know if the MENU will display on the set when this occurs.
If the MENU does NOT display normally (meaning it blacks out as well), then your TV has a hardware fault that is causing the problem.
If you need further help, then postback with the model number off of the back of the TV, and also the age of the set, and what sources are connected.
Feel free to reply back if you need more help, or want to reply back with more details. It does not cost you anything more to reply back once you've rated. Please do rate me positively (at least 3 STARS) and I will continue with you until this is sorted. The positive rating ensures I am credited for my work.