Heat and nouns? ok, I noticed today that something is wrong near my heat...

ok, I noticed today that something is wrong near my heat pump. It is blowing out nouns but but the air is not close to person cold. I changed the filter and turned it off for a while and its still not putting out cold nouns. Does anyone have suggestions or suggestion before I call upon in a professional?
Would out of order electricity to hand my...
Answers:    bid a tech your low on refridgerant
Why does my trane heat component surrounded by...
It is really difficult to diagnose without more information. You any need to identify what seem to be working and what is not functioning and provide more information or call within the big guns.
Sound proofing - apartment on busy street?