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Demystifying Furnace Error Codes and Choosing the Best Heating System

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A reliable and efficient heating system is essential for maintaining a comfortable and warm home, especially during the cold Canadian winters. However, heating systems can occasionally encounter issues, often indicated by error codes. In this comprehensive guide, we’ll explore various furnace error codes, what they signify, and how to address them. We’ll also discuss the benefits of different heating systems, including oil furnaces, and introduce you to ROMA Heating & Cooling, your trusted HVAC partner in British Columbia.

Cracking the Code: Understanding Furnace Error Messages

Furnace error codes are like your heating system’s secret language, providing valuable insights into potential problems. Each code corresponds to a specific issue, making it easier for homeowners and technicians to identify and resolve issues. Let’s delve into some common furnace error codes from reputable brands, such as Rheem, Carrier, Trane, Goodman, Ruud, American Standard, Lennox, and more:

  • ERR 184.08: This error code may indicate a communication problem between components in your heating system. It’s essential to have a professional technician investigate and address this issue.
  • Rheem Furnace Code 57: When your Rheem furnace displays code 57, it may suggest a problem with the furnace’s ignition control. Prompt attention to this issue is crucial to ensure your heating system’s proper functioning.
  • Carrier Error Code 12: Carrier furnaces may show error code 12, which typically points to a blower on after power-up fault. Professional diagnosis is necessary to determine the root cause and resolve it.
  • Trane 184.07 Error Code: Code 184.07 on a Trane furnace may indicate a high-temperature limit switch fault. This issue requires expert assessment to ensure safe operation.
  • Goodman Furnace Codes: Goodman furnaces may display various error codes, each indicating a specific problem. These codes range from issues with pressure switches to rollout switches, and professional assistance is essential for accurate diagnosis and resolution.
  • Ruud Furnace Code 0: A code 0 on a Ruud furnace may signify a control board failure. It’s vital to have a certified technician diagnose and address this issue promptly.
  • 7P1 Error Code (American Standard and Goodman): Both American Standard and Goodman furnaces may display the 7P1 code, which can indicate issues with the flame rollout switch, flame sensor, or other safety components.
  • Trane 1 DL Code: The 1 DL code on a Trane furnace suggests a pressure switch fault. Expert inspection and repairs are necessary to resolve this issue.
  • Navien E110 Error Code: Navien tankless water heaters may display the E110 error code, indicating a problem with the exhaust gas sensor. It’s crucial to have a Navien-certified technician address this issue.
  • Best Oil Furnaces Consumer Reports: When considering a heating system, you may explore oil furnaces. Consumer Reports can provide valuable insights into the best oil furnace options on the market.
  • Furnace Serial Number Search: You can use your furnace’s serial number to retrieve important information about your heating system, such as its age and warranty status.
  • E04 Error Code Trane Furnace: The E04 code on a Trane furnace may point to a high-limit circuit open fault. Professional assessment is necessary to diagnose and resolve this issue.
  • Lennox A450 Code: Lennox furnaces may display the A450 code, which can indicate various issues. Professional technicians are equipped to interpret and address this code accurately.

Choosing the Right Heating System for Your Home

Selecting the ideal heating system for your home is a crucial decision. Different systems, including gas, electric, and oil furnaces, offer various benefits. Let’s explore the advantages of oil furnaces:

  • Efficiency: Oil furnaces are known for their high efficiency, providing reliable warmth even in extremely cold conditions.
  • Durability: Oil furnaces are built to last, often requiring fewer repairs and maintenance over their lifespan.
  • Energy Independence: With an oil furnace, you’re not dependent on the natural gas supply, making it an excellent choice for homes in areas without natural gas lines.
  • Cost-Effective: Oil furnaces often have lower upfront installation costs compared to other heating systems.

Your Trusted HVAC Partner: ROMA Heating & Cooling

ROMA Heating & Cooling is your go-to HVAC service provider in British Columbia, specializing in diagnosing and resolving furnace issues. Our team of certified technicians has extensive experience with various furnace brands and models, ensuring accurate troubleshooting and timely repairs.

When you encounter furnace error codes or need guidance on choosing the right heating system, ROMA Heating & Cooling is here to help. Contact us at (604) 704-0300 or via email at for expert HVAC services tailored to your needs. We are dedicated to keeping your home warm, comfortable, and safe.


Furnace error codes are valuable indicators of potential issues with your heating system. While understanding these codes is essential, it’s equally important to rely on the expertise of certified HVAC professionals like ROMA Heating & Cooling for accurate diagnosis and safe, effective repairs. Whether you’re considering an oil furnace or need assistance with furnace troubleshooting, we’re here to ensure your home stays warm and cozy throughout the year.

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To book your next HVAC appointment with us, simply fill out the form below and we’ll contact you shortly. Alternatively, you can call the numbers listed on our website.

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