One symptom, many possible causes. That is the central challenge of HVAC repair, and it matters even more in O'Fallon, MO, where failures seem to wait for the most extreme weather of the year. Equipment that will not start at all might have a failed low-voltage transformer, a thermostat that has stopped calling, a control board that has lost its sequence, or a float switch shut off by a backed-up condensate drain. Equipment that runs but falls behind is a different list: a weak capacitor, a worn contactor, a low charge, a dirty flame sensor, or a filter clogged badly enough to starve the blower.
Most of our service calls are for AC Repair and Furnace Repair. That's the place to start if you need a fix today.
Warning Signs for HVAC Repair
Catching these issues early helps you avoid costly problems. Keep an eye out for the following clues:
- Rising utility costs even though the house feels worse
- Weak airflow from the supply registers throughout the house
- An outside unit that buzzes but will not start
- Vents blowing warm when you want cool, or cool when you want heat
- Water around the indoor unit from a clogged condensate drain
- New noises such as grinding, squealing, buzzing, or banging
- A circuit breaker that keeps tripping when the system starts
- Frequent on-off cycling while the house never gets to the thermostat setting
Early Action Saves Money
Left unchecked, even a small fault or temperature swing often signals a system working its way toward a breakdown. If you notice any of these signs, call (636) 200-4657 for a prompt inspection.
