My heat pump will come on but it won't stay on in the cooling position. When it turns off... it only blows out warm air. What could this be and how can I fix it? Thanks!:)

More info please... not sure what is going on with what you gave us. Sounds? Time? Everything running? T stat operations? More details will help us help you.

My heat pump will come on but it won't stay on in the cooling position. When it turns off....it only blows out warm air.

Please provide more info on your system. And can you clarify what you mean when you say it blows out warm air when it turns off.