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Midland HVAC Repair
Questions & Answers
We’re always happy to answer your questions.
If you don’t see what you’re looking for, don’t hesitate to contact us.
How often should I change my AC filter in Midland?
Every two weeks during cooling season. Midland dust clogs filters fast. A dirty filter restricts airflow, makes your system work harder, and can freeze your evaporator coil. Check it weekly during dust storms. Standard filters last 30 days in most places, but not here. Upgrade to pleated filters for better dust capture. When the filter looks gray or brown, replace it immediately.
Why does my AC run but barely cool the house?
Low refrigerant from a leak is the most common cause. Your compressor runs but can’t move enough heat outside. Dirty condenser coils also block heat transfer. Failed capacitors make the compressor work weak. Undersized ductwork in older homes restricts airflow. Thermostat problems can cause short cycling. We diagnose the real issue instead of just adding refrigerant and hoping it fixes itself.
Should I cover my outdoor AC unit during a dust storm?
No. Covering a running unit will overheat the compressor and cause damage. After the storm passes, spray off the condenser coils with a garden hose. Remove visible debris like tumbleweeds. If coils are packed with dirt, call us for professional cleaning. Heavy buildup blocks airflow and kills cooling efficiency. Regular coil cleaning is part of living in West Texas.
How do I know if my furnace has a cracked heat exchanger?
You smell exhaust or see soot around the furnace. Yellow or flickering burner flames instead of steady blue. The furnace shuts off randomly. Carbon monoxide detector goes off. Visible cracks or rust holes in the metal. A cracked heat exchanger leaks deadly carbon monoxide into your home. This is dangerous. We inspect heat exchangers with cameras during tune-ups to catch cracks early.
Why does my furnace click but not start?
Failed igniter is most common. The gas valve clicks trying to open but the igniter won’t light the gas. Bad flame sensor. Faulty gas valve. Thermostat wiring problem. Tripped limit switch from overheating. Low gas pressure. The clicking means the control board is trying to start the heating cycle but something prevents ignition. Don’t keep trying to restart it. Call us before you damage the control board.
My AC freezes up every few days. What causes that?
Frozen evaporator coils mean restricted airflow or low refrigerant. Dirty filters are the number one cause. Closed vents in unused rooms also restrict flow. Blower motor running too slow. Refrigerant leaks at outdoor unit connections. Clogged condensate drain line. Turn the system off and let ice melt completely before restarting. Repeated freezing damages the compressor.
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