Colby Heating & Sheet Metal | Qualified HVAC Repair in Ashland, WI

Common signs include a strange, metallic odor (similar to formaldehyde), soot buildup around the furnace, visible cracks or rust on the burner assembly, and symptoms like headaches or nausea in household members, which can indicate carbon monoxide leakage. This is a serious safety hazard, especially during our cold months. If you notice any of these signs, turn off your furnace immediately and call us for an urgent inspection.

Short-cycling is often caused by a clogged air filter restricting airflow, an oversized furnace for your home, a faulty flame sensor, or issues with the thermostat. In our climate, this problem forces your system to work harder, driving up energy bills and causing premature wear. We can diagnose the specific cause—whether it's a simple filter change, a sensor cleaning, or a more complex sizing assessment—to restore steady, efficient operation.

We offer comprehensive services to prevent breakdowns: annual furnace tune-ups and safety inspections to catch heat exchanger issues early, system cleaning to ensure proper airflow, thermostat calibration, and ductwork evaluation/repair. Our preventative maintenance plans are tailored for Northwoods winters, helping you avoid emergencies, improve efficiency, and extend the life of your heating system.