St. Louis HVAC Repair | AC Fan Motor & Air Filter Service | Perfection Heating & Cooling

Common signs include the outdoor unit not turning on, a humming sound without the fan spinning, or the fan running slowly. You might also notice reduced cooling or the system frequently tripping the circuit breaker. If you suspect a fan motor issue in the St. Louis heat, it's best to call for a professional diagnosis to prevent further damage to the compressor.

We recommend checking your air filter every month, especially during high-use seasons like our humid summers and cold winters. For standard 1-inch filters, plan to replace them every 1-3 months. Homes with pets, allergies, or more dust may need monthly changes. A clean filter is crucial for maintaining airflow, efficiency, and preventing strain on your system.

Yes, absolutely. A severely clogged filter restricts airflow, causing your system's evaporator coil to freeze in cooling mode or the heat exchanger to overheat in heating mode. This forces components like the blower motor and compressor to work much harder, leading to premature failure and costly repairs. Regular filter changes are the simplest way to protect your HVAC investment.