Need help with a/c

[painter]

I have an a/c unit located in an exterior closet in a condo.
when the unit kicks on frost builds up on the copper line very quickly, then after two mins the line warms up and never gets cold again

[t527ed]

need to call for service, leave it off till repaired.

[flick]

Not being rude, but we cannot diagnose your problem via HVAC-Talk. You need to call a local pro to check it out.
Sorry!