Celiera 12000 btu Mini-split ac unit blows cool air but not as cold as in the past. Unit has been installed for 3 years and functioned fine until now. Is it likely that I simply need additional freon?
Heating & Cooling - Fujitsu - 24R1 Air Conditioner
It's 'possible' but not likely that you need additional freon.
What is more likely is the 'filter' (for inside coil) is dirty and possibly the coil itself - and/or - the outside coil is dirty.
I would check out the filter - if dirty - I would change it and would also inspect the inside coil. If it's also dirty I would clean it the best I could (with a brush of some sort).
I would also check the outside coil and clean it if need be.
Answers & Comments
It's 'possible' but not likely that you need additional freon.
What is more likely is the 'filter' (for inside coil) is dirty and possibly the coil itself - and/or - the outside coil is dirty.
I would check out the filter - if dirty - I would change it and would also inspect the inside coil. If it's also dirty I would clean it the best I could (with a brush of some sort).
I would also check the outside coil and clean it if need be.
Hope this helps.