Got up this am and all was well. Ac running normal. Outside conditions were heavy rain and some thunder. Got in the shower getting ready for work. Got out of shower. Came downstairs to the outside unit running, making cold air, but constant loud humming noise when it is running.
Approx 3 year old system installed by @churchmouse
What can I check myself before having to call in a stranger? I'm not a complete moron, but I'm no hvac guy either.
Please help
Approx 3 year old system installed by @churchmouse
What can I check myself before having to call in a stranger? I'm not a complete moron, but I'm no hvac guy either.
Please help