Dvd safe Information

I have a portable air conditioner and the compressor keeps turning on and off? - portable air conditioner

It is 100 + out and have a portable air conditioner in my apartment. Unfortunately, the compressor does not stay. Lights for a minute. later, then you start on and off. Only the fan stays continuously. I noticed it only during the day. Has anyone an idea, why, why? It is for the coldest days, in order, if, if it was hot, it does. I think it is the demand for electricity or something.