S
staz
Guest
We have replaced the inside coil and the outside unit within the past year. Replaced the ducts in the attic too. All was well, but tonight the thermostat began flashing "er", and is not cooling- blowing, but not cool air. I took the batteries out, put new ones. I took cover off, blew canned air to clean dust.... Checked breakers..... That is all I can do, any ideas would be greatly appreciated. Thanks.