EF3000SEB chugs and stops as air temp. reaches 80 deg. F
My EF3000SEB starts and runs all night , after sunup and the temp reaches around 80 degrees, it chugs a few times and quits. Wait a while, it will start and immediately chugs and quits. All day, until temp drops after sundown, starts, runs all night, until next sunrise and temp increase, same problem. I have changed oil. Any solutions?