A guide for Smith County homeowners who've tried the basics.
You've changed the filter. Checked the thermostat. Made sure vents are open. Maybe you even looked at the outdoor unit to clear debris.
And the problem is still there.
At some point, troubleshooting reaches a limit. Knowing where that limit is saves you time, frustration, and potentially money.
If your system runs all day without cycling off, and the house never gets comfortable, something is wrong beyond what you can fix yourself. Possible causes include:
All of these require professional diagnosis and equipment.
Ice forming on your AC system is never normal in Texas summer. It typically indicates:
Don't try to chip off the ice. Turn the system off and call for service. Running an iced-up system can cause compressor damage.
If the air coming from your vents is room temperature or warm when the AC is running, the system isn't cooling at all. This could be:
None of these are DIY repairs.
Normal AC operation is relatively quiet — a steady hum and airflow. Concerning sounds include:
If you hear something new and concerning, it's worth having it checked before it becomes a bigger problem.
A burning smell from your HVAC system is a safety concern. Turn the system off immediately and don't turn it back on until a professional has inspected it. This could indicate:
If your AC repeatedly trips the breaker, there's an electrical problem. Resetting it over and over is not a solution — it's a fire risk. This needs professional diagnosis.
Some condensation is normal, but water pooling around your indoor unit or dripping from vents indicates a drainage problem. Left unaddressed, this causes water damage and mold growth.
When you call an HVAC technician for a cooling problem, they typically:
A good technician explains what they find and gives you options — not just a bill.
Costs vary based on the problem, but general ranges for Smith County:
A diagnostic fee is normal and reasonable — it covers the technician's time to identify the problem. Many companies apply it toward the repair if you proceed.
For HVAC work in Smith County, look for:
DIY troubleshooting has its place — filters, thermostat settings, clearing debris. But when the problem involves refrigerant, electrical components, ductwork, or anything you can't see or safely access, professional help is the right call.
Waiting too long can turn a minor repair into a major one, or leave you without cooling during the worst of an East Texas summer.
Ready to talk to a licensed HVAC professional in Smith County? Call 844-782-0080 to connect with someone serving Tyler and surrounding areas.