I have a coleman heatpump and the other day the fan out side quit running. Someone came out and replaced the relay switch. Worked fine for a few hours, Then it shut off again but the inside fan kept running until I cut it all off. Any suggestions?

Sounds like something is taking the relay out... need more info sorry

If it is a heatpump you may have trouble with your defrost board, or it may just be a motor going bad.

Check your breakers going to the outside system(turn it off and then back to on). It's a stab in the dark but when most home owners say the fan out side is not working neither is the compressor its main power failure.