Wieder Ernest Heating and Sheet Metal: Qualified HVAC Repair Serving Highland Park, IL 60035

Common warning signs include a yellow or flickering burner flame (instead of steady blue), soot or rust around the furnace, excessive moisture on windows near the unit, and a persistent, stale smell. Most importantly, if your CO alarm sounds, evacuate immediately and call 911, then call us for a professional inspection. We perform comprehensive safety checks to identify issues like cracked heat exchangers—a major CO source—and ensure your furnace operates safely.

In our Highland Park winters, frozen HVAC components like evaporator coils often result from restricted airflow (dirty filters or blocked vents) or low refrigerant levels. When a coil freezes, it can't absorb heat, leaving you cold. We'll first safely thaw the system, then diagnose the root cause—whether it's a simple filter change, ductwork issue, or a refrigerant leak. Our repair ensures the system runs efficiently to prevent re-freezing and protect your equipment from long-term damage.

We recommend an annual furnace tune-up, ideally in the fall before the heating season. This proactive service is crucial for Highland Park homes to catch early signs of wear that could lead to carbon monoxide issues or winter breakdowns. Our inspection includes cleaning components, checking for gas leaks, testing safety controls, and ensuring proper combustion—all vital for safety, efficiency, and preventing unexpected failures when you need heat the most.