My ac unit is not cooling, the large copper line is cold but not super cold, my husband changed the filter and we set the ac to 78 and it has been at 81 for about an hour. What other things should we check for before we call an AC repair person.

I have forced hot water baseboard heat. My two upstairs baseboards are cold when heat is fine in the rest of the lower house. I beld the unit and still it's cold. I pulled at least 2 quarts of water out but no air at all. Any sugesstions on what to do next. Thanks

I recently purchased a adobe style home built in 2000 with a Single Roof Mounted combined HVAC system in the Albuquerque New Mexico Area. Directly below the HVAC is the only cold air return duct work located in the ceiling of the Hallway on one end of the Home. A single Thermostat for the entire...

Hoping for help here. I recently had my ignitor replaced. Before that, the furnace wasn't working at all. Now it starts blowing warm (not hot) air, then gradually over a period of a couple of hours, the air cools down until it is completely cold and the temperature in the house drops drastically....