A furnace that won’t start in the middle of a Calgary winter is more than inconvenient—it can be dangerous. One of the most common causes of this problem is a faulty ignitor. Understanding and troubleshooting furnace ignitor issues can help you stay warm and safe while avoiding costly emergency repairs.
In this post, we’ll explain what your furnace ignitor does, why it might stop working, and what steps you can take before calling for professional help. Whether you’re dealing with minor glitches or need full furnace ignitor replacement, this guide will walk you through the basics.
What Is a Furnace Ignitor?
The ignitor is a critical part of your heating system. Its job is to ignite the gas that powers your gas burners. Most modern furnaces use a hot surface ignitor, which heats up electrically to ignite the gas instead of using a pilot light. If it fails, your furnace won’t produce heat.
A properly working ignitor is essential to ensure your furnace functions properly. Problems with this component can prevent the entire system from starting and may even lead to safety risks like unburned gas.
Common Signs of Ignitor Problems
If you’re experiencing issues with your furnace, watch for these signs that could point to a faulty ignitor:
- Furnace turns on but doesn’t produce heat
- Clicking sounds with no ignition
- Short cycling (turning on and off quickly)
- Visible cracks on the ignitor
- Tripped circuit breakers or blown fuses
If you see any of these signs, you may be dealing with a failed ignitor. That’s when it’s time to consider furnace repairs or possibly furnace ignitor replacement.
Causes of Furnace Ignitor Failure
There are several reasons your ignitor might fail:
- Age: Ignitors naturally wear out over time, usually after 3–5 years.
- Power Surges: Voltage spikes can damage the ignitor.
- Dust and Debris: A dirty ignitor or blocked gas valves can prevent ignition.
- Overheating: Poor airflow or overheating can damage the component.
All of these factors reduce system efficiency and increase the need for repair services.
How to Troubleshoot Furnace Ignitor Issues
Here are a few steps you can take before calling a professional:
1. Turn Off the Power
Before doing anything, turn off the power to your furnace. This is important for your safety.
2. Check the Thermostat
Make sure your thermostat is set to “heat” and the temperature is higher than the current room temperature. A simple setting error can mimic an ignitor issue.
3. Inspect the Furnace Filter
A clogged filter can cause the furnace to overheat and shut down. Replace it if it’s dirty.
4. Look for Error Codes
Many modern furnaces display error codes through flashing lights. Check the manual to interpret these signals. If the code points to the ignitor, you may need professional help.
5. Examine the Ignitor
If you’re comfortable doing so, inspect the ignitor for cracks or signs of wear. Don’t touch the element directly, as oils from your fingers can damage it.
When to Call a Furnace Repair Service
While DIY checks can help, most ignitor issues require a professional furnace repair service. A certified HVAC technician can test the ignitor with a multimeter, inspect surrounding parts, and perform a safe furnace ignitor replacement if needed.
Emergency Furnace Repair
In some cases, you can’t wait for a regular service appointment. If your furnace stops working during freezing weather or shows signs of a gas issue, contact an emergency furnace repair provider immediately. Delaying can put your home at risk and may lead to frozen pipes or exposure to carbon monoxide.
Importance of Regular Maintenance
Routine furnace service can help prevent many common ignitor issues. Technicians will clean your heating system, inspect electrical connections, and test safety components.
Maintenance not only keeps your system energy efficient, but it also reduces emergency service calls and extends the life of your furnace.
Long-Term Benefits of Professional Repair Services
Hiring professional repair services offers several long-term benefits:
- Proper diagnosis and safe repair
- Access to quality replacement parts
- Warranty protection
Reduced risk of further damage
You’ll also have peace of mind knowing your furnace is functioning correctly and your home stays warm during Calgary’s coldest months.
Additional Tips
- Don’t ignore repeated short cycling—this could signal deeper issues
- Keep your furnace area clean and free of clutter
- Install a carbon monoxide detector near your heating system
- Replace old thermostats with programmable models to reduce stress on your furnace
Calgary Furnace Service
Furnace ignitor problems are a common reason heating systems fail during winter. By learning how to spot the signs early and taking action, you can avoid major disruptions. While some issues can be solved through basic troubleshooting, most require a qualified aaaheating and plumbing HVAC technician for safe and effective furnace repair service.
Whether it’s a routine fix or an urgent need for emergency furnace repair, don’t wait until your home goes cold. Get help right away and ensure your system is ready for whatever the Calgary winter brings.
With regular maintenance and prompt furnace ignitor replacement when needed, you’ll keep your heating system running smoothly for the long term.
