Bought a brand new air conditioning unit in 2017 a...

Bought a brand new air conditioning unit in 2017 and I bought the 5-year warranty. Everything worked great at first but then randomly the AC would stop Cooling for an hour or two here and there. Sometimes it would break for an entire day and then it magically starts working again. I have had technicians come out to look at it several times no one can ever figure out what's wrong with it they always just leave and say if it does it again give us a call. I'm currently sitting here with a broken air conditioner I guess I'll call and have a technician come out for the 7th time in two years.