HVAC Services Southfield MI | Call Davis Residential Heating & Cooling

A furnace ignition failure is a common winter issue here, often caused by a faulty ignitor, flame sensor, or gas valve. These components can wear out or get dirty. For safety and to restore heat quickly, our technicians diagnose the specific cause and perform the necessary repair or replacement to get your furnace running reliably again.

Frozen HVAC components, like your evaporator coil, are typically a sign of restricted airflow or low refrigerant. In our area, this can be caused by dirty air filters, blocked return vents, or a refrigerant leak. We'll identify the root cause, thaw the system safely, and fix the issue—whether it's a simple filter change or sealing a leak—to prevent future freeze-ups and protect your equipment.

The single most effective step is changing your air filter regularly—every 1-3 months. A clean filter prevents airflow restrictions that lead to overheating, freezing, and system strain. We also recommend a professional tune-up before each heating and cooling season. Our maintenance checks catch small issues, like a weakening ignitor or dirty sensor, before they leave you without heat or cool air.