See if you can spot any ice on the lines on the inside and outside unit. Chances are the coils are frozen. You will need to let it defrost if this is the case. Could take up to 24 hours. Or less than an hour of you run the heat. Be prepared for water to leak from the inside unit as the drain may not keep up. Once fully thawed (you’ll never know when unless you can see inside an access panel, so longer is better) you can run it again. You should change the filter as low air flow can lead to frozen coils. If it happens again with a fresh filter, chances are it has low refrigerant and needs to be charged by an HVAC tech. If it’s low after one year, you probably have a leak somewhere. Hopefully it’s under warranty still.
That’s definitely too hot for a brand new AC, was it rated for a dwelling of your size? Mine is almost 20 years old and keeps my 1800sqft home in the mid 70s at 100 degree outside temps
A few years ago the motor in our HVAC died, fortunately in spring when we didn’t need it much. After he repaired it, the guy noted that it was really sucking in on the return ductwork, but the paper filter was okay, implying that the return duct wasn’t large enough.
We have an electrostatic air filter on our HVAC, installed by the original owner of the house, that the tech didn’t know about, and I just didn’t think about while he was there. After he left, I remembered it and checked it. I had been cleaning the two larger “cartridges”, but I either forgot or didn’t know that there were also fine screens above them. Those screens were clogged…badly. Oops.
Cleaned them up and now the HVAC works well. Well, as well as it can given there’s ONE air return at the top of the steps…so the upstairs is always a few degrees warmer.
See if you can spot any ice on the lines on the inside and outside unit. Chances are the coils are frozen. You will need to let it defrost if this is the case. Could take up to 24 hours. Or less than an hour of you run the heat. Be prepared for water to leak from the inside unit as the drain may not keep up. Once fully thawed (you’ll never know when unless you can see inside an access panel, so longer is better) you can run it again. You should change the filter as low air flow can lead to frozen coils. If it happens again with a fresh filter, chances are it has low refrigerant and needs to be charged by an HVAC tech. If it’s low after one year, you probably have a leak somewhere. Hopefully it’s under warranty still.
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That’s definitely too hot for a brand new AC, was it rated for a dwelling of your size? Mine is almost 20 years old and keeps my 1800sqft home in the mid 70s at 100 degree outside temps
deleted by creator
A few years ago the motor in our HVAC died, fortunately in spring when we didn’t need it much. After he repaired it, the guy noted that it was really sucking in on the return ductwork, but the paper filter was okay, implying that the return duct wasn’t large enough.
We have an electrostatic air filter on our HVAC, installed by the original owner of the house, that the tech didn’t know about, and I just didn’t think about while he was there. After he left, I remembered it and checked it. I had been cleaning the two larger “cartridges”, but I either forgot or didn’t know that there were also fine screens above them. Those screens were clogged…badly. Oops.
Cleaned them up and now the HVAC works well. Well, as well as it can given there’s ONE air return at the top of the steps…so the upstairs is always a few degrees warmer.