Need help with what to do with my expensive but poor HVAC install

[Timothy G Dunson]

Good morning all,

I recently bought and renovated a house. With that renovation came a new air conditioner and insulation in the attic to help ensure the AC would work properly. In all I spent 11k on it 7 for the insulation and 4 for the new AC unit.

Since then I've had numerous problems with the unit not working well or at all. I've had it serviced for a frozen coil twice, the overflow has turned it off multiple times and in general will not keep the house below 78° during the day. I feel like I paid enough money for it to work flawlessly year around but has been nothing but problems which is really inconvenient because I run the unit as an Airbnb. Also installed a Google nest so the client's can't turn the air too low.

My question is what can I do with the contractor that installed the unit? At this point I either want a new unit or someone else to do another install because the this one is not doing the job I expected when I paid $11000+.

Thanks for the input as always BP!

-Graham

[Chris Seveney]

Quote from @Bruce Woodruff:

Is this an older house? How many tons is the condenser? The ducts may be too small for the size of the condenser, but a HVAC guy should've caught that.

I would call the manufacturer of the product as you should have a warranty and have them send someone out. They could tell you as it could be the unit or could be something else. Then once you find what the issue is, determine if its the original installer, product or existing conditions. 

FYI Frozen coil can be several things (link below). Typically its humidity issues is what I have seen most in the past.

https://advanced-air.com/help-...