Furnace Repair in Leo-Cedarville, IN

A furnace that won’t start typically traces back to a tripped breaker, a blown fuse, dead thermostat batteries, a control board that’s lost its connection, or a closed gas valve. We work through each of these to pinpoint the problem and decide whether a repair or a new furnace installation is the right path forward.

Cold air from your furnace usually points to a failed ignitor or pilot assembly, a thermostat fan stuck on instead of auto, or burners coated with dust and debris that block combustion. Each problem has its own fix, whether that’s swapping a part or cleaning the burners. We’ll figure out which one your system needs.

Short cycling typically comes from a dirty flame sensor, a clogged filter that trips the limit switch, or an oversized furnace that overheats quickly. Our technician starts by inspecting the sensor, filter, and limit switch. That’s where most problems begin. If your system is nearing the end of its lifespan, we’ll also help you decide whether a furnace replacement makes sense.

A rattle usually means loose sheet metal or a vibrating screw. A squeal points to a worn blower belt or failing motor bearing. A bang at startup typically signals delayed ignition, where gas collects briefly in the burner chamber before lighting. Our technician will identify what’s causing the noise and complete the necessary work.

One cold room usually means a closed or blocked vent. Clogged filters or a blower motor running below speed typically cause weak airflow throughout the home. Leaking or crushed ductwork steals heat before it reaches your registers. We test airflow at the return and each vent to find exactly where the drop-off occurs.

A faint burning smell during the first few heating cycles of the season is just dust burning off the heat exchanger. It clears up within an hour. A sharper, more chemical smell can mean wiring insulation overheating near the blower motor. A metallic or scorched smell that lingers signals a cracked heat exchanger, which is a serious safety concern. We test the heat exchanger and wiring before restarting the system. Your safety comes first.

A pilot that keeps going out typically points to a failing thermocouple, which cuts off gas flow as a safety measure when it stops sensing the flame. Draft entering the burner compartment can extinguish the flame outright. A clogged pilot orifice starves the flame of gas until it won’t stay lit. We measure the thermocouple’s millivolt output directly rather than just relighting it and hoping for the best.

That blinking light is a flash code. The number of blinks between pauses tells you which part has failed, whether that’s a pressure switch missing airflow, a flame sensor with no signal, or a limit switch tripped by overheating. We read that code against the manufacturer’s chart, so the repair targets the exact part causing the problem.