Don’t Ignore Your Furnace Making Noise

December 20, 2021
Furnace Repair in Belleville, ON

If your furnace is making noise, it’s important that you address it. The kind of noise you’re hearing can clue you into what the problem is.


A clicking noise usually indicates there’s an issue with the ignition system. The burners may be dirty, or the flame sensor is broken. The problem could also be that there’s a broken ignition board or a valve is clogged. You should have a qualified technician inspect your furnace to determine what the issue is and resolve it.

High-Pitched Squeal

This sound typically comes from the blower motor. It may be overheated, or it could be a bad capacitor. A high-pitched squeal may also be caused by a low airflow problem. Look at the air filter and replace it if it’s dirty. If this doesn’t solve the problem, you’ll need a professional to diagnose the problem.

Quinte Air Supply in Belleville, ON, can help you with this sound and any other your furnace is producing. We offer 24/7 emergency furnace repair if your issue is urgent.


A rattling sound frequently means there’s either a loose part in your furnace or the heat exchanger is cracked. You should turn your furnace off and call a professional. A cracked heat exchanger is a major safety issue, while a loose part can cause further damage.


This sound typically indicates there’s a delayed gas ignition problem. If you hear a banging sound when your furnace turns on, it’s not lighting as it should. Gas is building up in your furnace and then exploding. Call an HVAC professional if you hear this sound.


A humming sound usually means your furnace has an electrical problem. It could be a bad blower motor, a broken transformer or other problem.

Quinte Air Supply installs, repairs and tunes-up heaters and air conditioners in Belleville, ON, and the surrounding areas. We can also help you with traditional and tankless water heaters, indoor air quality, ductless systems and sheet metal fabrication. Please call today to schedule an appointment.

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