I'm having an issue with my Carrier AC unit—it seems to be operating normally, but it's not blowing any air through the vents. I went outside and noticed there's ice buildup on one of the lines going into the house. What could be causing this?
3 Answers
The ice buildup usually means there's either low refrigerant levels or a lack of airflow over the coils, often due to a dirty filter. You’ll need to let the ice melt before doing any troubleshooting. Seriously, let it thaw out first!
Sounds like your interior unit is probably iced up. Just give it some time to defrost and see if that helps.
It seems your evaporator coils are completely frozen. Try turning the fan on your thermostat to 'always on,' and switch the cooling off for a few hours. This will allow the ice to melt. Just watch for leaks while it thaws, as the melting ice might overflow the drip pan. It could be that you have a dirty coil and air filter causing the system to overwork itself, or worst-case, a leak that has you running low on refrigerant. Stay sharp!