hello i have a brand new GE 12000BTU AC. its all digital works fine. only problem is that the compressor comes on, it blows out nice cold air for 30 sec or so then the compressor trips an overload or safety switch or something and shuts off for about a min. then turns back on and repeats the cycle. but the fan and everything else stays on. any ideas? again its brand new. but cant be returned because i work at the store i got it from. it was a defective return, i snatched it before it was thrown away.