sull4home
Aug 13, 2008, 07:32 PM
We have a Carrier H/A heat pump unit. When the air is set for 78 and it reaches 78 and shuts off, there is a humming noise on the unit outside.
What is causing this noise? Is it okay? Is it normal?
The only way we can stop it is to turn off the system.
What is causing this noise? Is it okay? Is it normal?
The only way we can stop it is to turn off the system.