I have a central ac unit which seems to cool just fine, but it starts making a loud hum / rattle noise after running for 30 minutes or so... any ideas?
hvac1000
Jul 10, 2012, 10:35 AM
I have a central ac unit which seems to cool just fine, but it starts making a loud hum / rattle noise after running for 30 minutes or so... any ideas?
Can you be more descriptive? Like is the noise inside or outside unit?