Table of Contents
When your Coleman furnace suddenly stops working in the middle of winter, it’s more than just an inconvenience — it’s an emergency. Like any heating system, Coleman furnaces can run into issues over time, but the good news is that most of these problems can be quickly diagnosed using built-in error codes.
In this guide, we’ll walk you through everything you need to know about Coleman furnace error codes, from what they mean to how you can fix them. We’ll also cover how reliable Coleman furnaces are, common repair costs in Canada, and when it’s time to call in a professional.
About the Coleman Brand
When it comes to heating systems, Coleman is a name that inspires trust. The company has been around since the early 1900s, and its products are known for reliability, efficiency, and affordability. Coleman furnaces are especially popular in Canada, where harsh winters demand high-quality, dependable heating.
What makes Coleman so sought-after?
- Durability. Most of their furnaces last 15-20 years with proper maintenance.
- Energy efficiency. Many models meet Energy Star standards, helping homeowners cut down on heating bills.
- Availability of parts and service. This makes repairs and diagnostics easier and more affordable compared to some competitors.
However, like any appliance, even the most reliable furnaces can experience issues. Let’s look at how often problems occur and which Coleman furnace errors are the most common.
Reliability and Frequency of Coleman Furnace Breakdowns
When investing in a furnace, one of the biggest concerns for you is how often it might break down. Coleman furnaces are generally considered reliable, but like all heating systems, they do have some common trouble spots.
What Are the Most Frequent Issues?
- Pressure Switch Problems – One of the most reported furnace issues. This often happens when venting gets clogged, or the pressure switch itself wears out over time.
- Thermostat and Wiring Issues – Sometimes, the furnace receives incorrect signals due to faulty wiring or a malfunctioning thermostat, leading to false error codes or improper operation.
Gas Valve Malfunctions – Less common, but when gas valves fail, they can prevent the furnace from igniting properly and may require professional repair.
How Often Do Coleman Furnaces Experience Major Breakdowns?
Most homeowners report their first significant furnace issue between 8-12 years of use. This lifespan is quite competitive compared to other brands. Regular furnace maintenance, such as changing filters and keeping vents clear, can help extend a Coleman furnace’s longevity and reduce the risk of unexpected failures.
Overall, while Coleman furnaces have some common problem areas, they remain a solid choice for homeowners looking for a balance between affordability and reliability.
Most Common Coleman Furnace Error Codes
If your Coleman furnace isn’t working properly, it will display an error code using a flashing LED. Below, we have prepared a breakdown of common Coleman furnace error codes, their meanings, and potential repair costs.
Flashing and Continuous Coleman Furnace Error Codes
These codes help you understand whether your furnace is functioning properly or if there’s a critical issue. Here’s a breakdown:
Code | Explanation | Solution |
|---|---|---|
Flashing Slow | Normal – No call for heat.
| No action needed.
|
Flashing Fast
| Normal – Call for heat received.
| Furnace is working as intended. |
Continuous ON
| Integrated Furnace Control (IFC) failure.
| Replace the IFC (contact a technician). |
Continuous OFF
| Power issue.
| Check the power supply and breaker. |
Pressure Switch & Airflow Error Codes
Issues related to the pressure switch and airflow problems often cause ignition failures or system shutdowns.
Error Code | Issue | Solution | Estimated Repair Cost |
|---|---|---|---|
2 Flashes
| Pressure switch stuck closed
| Check venting, clean or replace the switch
| $150–$300 |
3 Flashes
| Pressure switch stuck open
| Inspect and clean the venting system
| $150–$300 |
4 Flashes
| Open high-limit switch (overheating)
| Replace filter and inspect blower
| $80–$350 |
6 Flashes
| Lockout due to pressure switch error
| Replace the switch if cleaning does not help
| $150–$300 |
Ignition & Flame Detection Error Codes
These errors indicate issues with the furnace’s ability to ignite or properly detect the flame.
Error Code | Issue | Solution | Estimated Repair Cost |
|---|---|---|---|
1 Flash
| Flame detected when gas valve is closed
| Turn off the furnace and call a professional
| $300–$800 |
5 Flashes
| Open rollout switch (faulty blower or blocked heat exchanger)
| Check ventilation and replace blower if needed
| $150–$600 |
7 Flashes
| Too many ignition attempts
| Check igniter and gas valve; replace if needed
| $300–$600 |
8 Flashes
| Control board failure
| Reset or replace the control board
| $400–$800 |
Blower Motor & Wiring Error Codes
Blower motor issues and wiring malfunctions can affect heating performance and safety.
Error Code | Issue | Solution | Estimated Repair Cost |
|---|---|---|---|
9 Flashes
| Blower motor issue
| Inspect and replace the blower motor
| $300–$700 |
Continuous Flashing
| Thermostat or wiring problem
| Check thermostat and reconnect any loose wires
| $150–$350 |
If your furnace displays a different code or the issue persists after troubleshooting, it’s best to call a professional furnace repair service to avoid further damage.
How Much Does It Cost to Repair a Coleman Furnace Error Code in Canada?
The cost of repairing a Coleman furnace can vary based on the specific issue, your location, and labor rates. However, here’s a general idea of what you can expect to pay for common repairs in Canada:
- Diagnostic Fee – $80–$150 (covers the initial inspection and troubleshooting)
- Gas Valve Replacement – $300–$600
- Thermostat Replacement – $150–$350
- Control Board Repair or Replacement – $400–$800
- Pressure Switch Cleaning or Replacement – $150–$300
Coleman furnace repair costs are generally in the mid-range compared to other brands. Since parts are widely available and most HVAC technicians are familiar with Coleman systems, labor costs remain reasonable. Regular furnace maintenance can help you avoid costly repairs in the long run, making Coleman furnaces a solid choice for homeowners looking for affordability and reliability.
When It’s Time to Call a Professional?
While some minor furnace issues can be handled with basic maintenance, such as replacing a filter or cleaning vents, certain situations require the expertise of a certified HVAC technician. You should call a professional if:
- The furnace won’t turn on, and you can’t determine the cause.
- You notice a gas smell or suspect a gas supply issue.
- The control board is malfunctioning.
- The blower motor fails or overheats.
Why Is Professional Help Important? Ignoring serious furnace issues can lead to bigger problems, including safety hazards like gas leaks or carbon monoxide buildup. A licensed HVAC technician can accurately diagnose the issue and ensure your furnace is running safely and efficiently.
Conclusion
Coleman furnaces are known for their reliability, but like any heating system, they can develop problems over time. If you receive a Coleman furnace error code, start by checking the basics—filter, venting, and thermostat. If the issue persists, it’s time to call in a professional.
If you need Coleman furnace diagnostics or repairs in Canada, don’t hesitate to contact our HVAC Service Solutions team. Our certified technicians are experienced in troubleshooting and fixing all Coleman furnace issues, ensuring your home stays warm and comfortable. Reach out to us today!
FAQs
1. What should I do if my Coleman furnace displays an error code?
When your Coleman furnace displays an error code, the first step is to note the specific code and refer to the furnace manual to understand its meaning. Many Coleman furnace errors can be resolved by checking the basics, such as ensuring the filter is clean, the thermostat is set correctly, and the vents are clear. If the issue persists after troubleshooting, it’s best to contact a certified HVAC technician. A professional can diagnose the issue accurately and avoid further damage to your furnace.
2. How reliable are Coleman furnaces?
Coleman furnaces are generally reliable, with most models lasting between 15-20 years if properly maintained. Regular maintenance, like replacing filters and cleaning vents, can help extend the furnace’s lifespan and minimize breakdowns. While no appliance is immune to issues, Coleman is known for its durable and energy-efficient products, making it a solid choice for homeowners in colder climates like Canada.
3. How do I know if my Coleman furnace’s pressure switch is malfunctioning?
A malfunctioning pressure switch is one of the most common issues in Coleman furnaces. If you see error codes like “2 flashes” or “3 flashes,” it usually indicates a problem with the pressure switch. The issue could stem from clogged vents or a damaged switch. To resolve it, you may need to clean or replace the switch. If cleaning doesn’t solve the problem, professional repair may be necessary.
4. What causes a furnace to go into lockout mode?
Lockout mode is triggered when the furnace encounters multiple ignition or pressure switch errors. If you see the error code “6 flashes,” it likely means your furnace has gone into lockout mode due to a pressure switch malfunction. You’ll need to replace the pressure switch or clean the venting system to restore normal operation. In some cases, a professional technician may be required to resolve the issue.
5. What are the common reasons for a Coleman furnace to fail to ignite?
Furnace ignition failures are often related to issues with the gas valve, flame sensor, or ignition system. If you see the error code “7 flashes,” this could indicate too many ignition attempts, often caused by a faulty igniter or gas valve. You may need to inspect or replace the igniter or gas valve to restore ignition. Always ensure that the gas supply is functioning properly before calling for repairs.
6. Can I repair my Coleman furnace’s control board myself?
The control board manages critical furnace functions, so if it’s malfunctioning, it can prevent the furnace from working properly. Error codes like “8 flashes” typically signal a control board failure. While you can attempt a reset, replacing the control board is complex and should be done by a licensed technician. DIY repairs could lead to further damage or safety risks, so it’s best to call a professional to handle this issue.
7. How much does it cost to repair a Coleman furnace in Canada?
Repair costs for a Coleman furnace can vary depending on the issue and the labor rates in your area. On average, diagnostic fees range from $80 to $150. More serious repairs, such as replacing the gas valve or control board, can cost anywhere from $300 to $800. Pressure switch repairs usually cost between $150 and $300, depending on the nature of the issue. Regular maintenance can help reduce the likelihood of costly repairs.
8. What is the most common Coleman furnace error code?
One of the most common error codes on Coleman furnaces is “2 flashes,” which indicates a stuck closed pressure switch. This issue often arises due to clogged vents or a worn-out switch. If you encounter this error, first check the venting system for blockages, and consider cleaning or replacing the switch to resolve the issue.
9. What should I do if my Coleman furnace keeps showing the "continuous flashing" error code?
A “continuous flashing” error code typically points to a thermostat or wiring problem. It suggests that the furnace is not receiving the correct signals to function properly. Start by checking the thermostat settings and reconnecting any loose wires. If the problem persists, contact a professional HVAC technician to inspect the system and make any necessary repairs.
10. When should I call a professional to repair my Coleman furnace?
If you encounter issues like the furnace not turning on, a gas smell, or persistent error codes, it’s time to call a professional. Also, if the blower motor fails, the control board malfunctions, or there are signs of overheating, don’t attempt DIY repairs. A certified technician can accurately diagnose and fix the problem, ensuring the furnace runs safely and efficiently. Ignoring serious issues could lead to bigger, more costly repairs in the future.
Share
