I have a Pelonis window air conditioner,rarely used,110 volt,that runs great except for it tripping?

the breaker when the compressor kicks on .it will sometimes kick it off completely ,other times it will kick itself right back on again ,then off.the manual was uesless as far as any solutions.what do i need to do.i have ajusted fan speeds and temperatures..still doing it .it will run all day long on fan only.it is 110 degree heat index PLEASE HELP!!!Thankyou