Air Handler Service in San Antonio, TX
The air handler is the indoor half of your system, and when it struggles, the whole house feels it. We diagnose and repair the air handler faults that leave rooms warm or airflow weak.
Your air handler houses the blower motor, the evaporator coil, and the electrical controls that push conditioned air through the house. In most San Antonio homes it sits in a hot attic or a closet, and that heat plus year-round runtime is hard on the motor and the board. When it acts up you'll notice weak airflow, warm rooms, odd noises, or a system that runs but never cools.
Blower trouble is common. A failing blower motor, a bad capacitor, or a wheel packed with dust and buildup all cut airflow, which drags down the whole system and can freeze the coil. We test the motor and capacitor under load and clean or replace the blower assembly so the system moves the air it's supposed to.
The evaporator coil inside the air handler is where humidity gets pulled from your air, and here it works overtime. It also generates a lot of condensate, and with our hard water that drain line scales and clogs faster than most, which can shut the system down or overflow the pan and stain your ceiling. We flush the drain, test the float switch, and check the coil for scale, dirt, and leaks.
We also go through the electrical side, the control board, sequencers, and wiring, since attic heat and summer-storm power surges wear those components down. Getting the air handler right is what turns cold air at the coil into even, comfortable cooling in every room.
What air handler service covers
- Blower motor and capacitor testing and replacement
- Evaporator coil inspection and cleaning
- Condensate drain flush and float-switch test
- Hard-water scale check on coil and drain line
- Control board and wiring diagnosis
- Odd noise and vibration troubleshooting
Other services
Frequently asked questions
What are signs my air handler is failing?
Weak airflow from the vents, warm rooms even while the AC runs, rattling or grinding noises, or water around the indoor unit. Any of those point to the blower, coil, drain, or controls in the air handler.
Why is water leaking from my indoor unit?
It is almost always the condensate drain or the pan. Here, our hard water and algae clog the line and back it up. We flush the drain, test the float switch, and check the pan so it does not overflow into your ceiling.
Can a bad air handler make my whole system underperform?
Absolutely. The outdoor unit can run perfectly, but if the blower or coil in the air handler is restricted, airflow drops and the system cannot deliver cool air evenly. It is often the hidden cause of a house that will not cool.
My air handler is in the attic, is that a problem?
It is common here, but attic heat is hard on the motor and electronics, and a drain overflow up there can damage your ceiling. That is why we pay close attention to the drain, float switch, and pan on attic units.
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