Ac problem....please help

I bought a 12.300 btu samsung window AC to cool my grow tent......the grow tent is 4x8x6.5........The ac will kick on for 1 minute and then shut of for a few , and it just keeps cycling that way.....I know for sure its not a faulty unit because its my second one of the same kind....is there anything I can do to get the damn thing to stay on......Thanks

Set the thermostat lower on the A/C? Sometimes you have to set the thermostat lower then the desired temperature to actually keep your grow room at the temperature you want because the thermostat is on the A/C and that will get colder than the other side of the room.

i already tried that and no results......if i open up the tent and the door to my grow room it runs like a dream, but as soon as i seal up that tent it starts acting up.....im trying to keep everything as sealed as possible because i am going to run co2...this is the second ac ive done this with and both show the same results

Do you have a thermostat in the room? Is it keeping the room at the temperature you want? That is a huge A/C for a 4x8 room. May only need to run very little.

no because the compressor will not stay on longer than 2 minutes.....thats the whole problem.....im running 2600 watts and need this amount of ac...

If you have a window A/C in a tent is it vented at all. Window A/C's are meant to hang in the window. That could be your problem. Could have something to do with negative pressure. Maybe you can return it for a portable one.

Is there an energy saver button or something like that?

It does have an energy saver button....

Sounds like Evap coil is getting to hot.

thanks everyone for your help, but i mastered the machine last night.....just 1 little modification and it runs liike a dream.....