How to Troubleshoot Ducane Furnace Error Codes

When you have a home appliance that has as many moving parts as your furnace does, there’s bound to be some friction every once in a while. Furnaces are fairly complicated devices and they have their fair share of error codes. Whether you have a Ducane, carrier, or another brand of furnace, all furnaces will generate numerous error codes at one time or another. However, don’t let these error codes scare you! While they do indicate there is an issue with your furnace, these error codes are helpful indicators that let you know what needs to be fixed and how to fix it. If you come home from work one day and find that your furnace isn’t working properly, the first thing you want to do is check for any relevant error codes. They can indicate the source of the problem before even calling in an expert. In this article we will go over everything you need to know about troubleshooting Ducane furnace error codes; from understanding what the errors mean and how to identify them on your device, to information about professional help that may be necessary if things get too tricky for you.

Error Code Basics

First, let’s define what an error code is. It is a number generated by your furnace that indicates a problem has occurred with one of the device’s components. Most modern furnaces have two types of error codes: a continuous error code, and a single-use error code. Continuous error codes are fault code that remains on the device until a technician can come out and fix it. Single-use error codes, however, must be reset once corrected. If you see a continuous error code on your furnace, don’t panic! As we said, it simply indicates that there is an issue that needs to be fixed. There is no need to be alarmed that your furnace is on its last leg because all continuous error codes are easily remedied. Single-use error codes, however, are more serious and need to be addressed as soon as possible. If you have a single-use error code, you should have your furnace looked at as soon as possible, as it may not give you further warnings.

Ducane Error Codes

Since Ducane is a relatively new company in the furnace industry, homeowners must familiarize themselves with the error codes for their specific model. This will help you when you’re troubleshooting at home and will let you know if you need to call for professional help. Here are some of the error codes for du center furnaces: – Error Code 01: This means one of your burners isn’t igniting. This can be due to a clogged burner, gas valve issues, or a faulty ignition module. – Error Code 02: This means that one of your blower fans isn’t working as it should. Blower fans direct the flow of air throughout your home. If one of these fans isn’t working properly, the circulation of air in your home will be diminished and the rooms with the faulty blower will be much warmer than others. – Error Code 03: This means there is a problem with the control board. The control board is the computer of your furnace and is responsible for regulating the burners and blower fans. Therefore, if you see this code on your furnace, you must call a technician as soon as possible. – Error Code 04: This error code indicates that the pressure switch is faulty. The pressure switch is responsible for monitoring the furnace pressure and making sure it is high enough to ignite. If the pressure switch is faulty, it will not let the burners ignite and the furnace will not turn on.

Combustion Error Codes

Not only can error codes indicate issues with your furnace’s mechanical parts, but they can also indicate problems with your home’s fuel source. Here are some common combustion error codes associated with natural gas-powered furnaces. – Error Code 12: This indicates that the gas pressure is too low. The gas pressure in your home should be around 10 pounds per square inch (PSI). If the pressure is too low, it is most likely due to a faulty regulator. The regulator is what controls the amount of gas that enters your home and feeds your furnace. If the regulator is faulty, it may cause the gas pressure in your home to drop. – Error Code 31: This means there is a problem with the gas valve. If the gas valve becomes faulty, it will not let gas flow through it. Therefore, you need to have the gas valve replaced as soon as possible as it could lead to a potential gas leak. – Error Code 32: This indicates that the pilot or burners aren’t receiving enough gas. This could be due to a clogged or broken gas line or faulty parts in the furnace-like the orifices, or pilot jets.


When you have error codes on your furnace, the last thing you want to do is ignore them. These codes are there to help you identify the source of the problem and they need to be addressed as soon as possible to avoid bigger problems in the future. When troubleshooting Ducane furnace error codes, it is important to know the model of your particular furnace and the error codes associated with it. This will help you identify the problem and know when it is time to call an expert.