McKenny Services: Reliable HVAC Services Serving Hazelwood, MO 63042

The extreme summer heat and humidity in Hazelwood put extra strain on AC systems, causing capacitors to overheat and fail prematurely. At McKenny Services, we keep common capacitor models in stock for most local HVAC units and can typically diagnose and replace a failed capacitor during the same service call, restoring your cooling quickly.

This is a common issue here during peak summer. Often, it's due to a combination of a failed capacitor, a refrigerant leak, or a frozen evaporator coil caused by restricted airflow or low refrigerant. Our technicians will perform a thorough diagnostic to pinpoint the exact cause—whether it's an electrical component, a refrigerant issue, or a blockage—and explain your repair options clearly.

We recommend a pre-summer AC tune-up, which includes checking and tightening electrical connections, testing the capacitor and contractor, cleaning the coils, checking refrigerant levels, and ensuring proper airflow. This proactive service can identify weak components before they fail in the heat, potentially saving you from a costly emergency repair on the hottest day of the year.