Table of Contents
5 Reasons Why Your York Furnace Has a Twinning Error
In the world of heating and cooling systems, there are a variety of different procedures and terminology, much of which can be confusing. Even experienced technicians have difficulty remembering all of the details when they’re working on specific parts of the system. For example, to understand why your York furnace has a twinning error and what you need to do about it, you need to know about “twinning.” There are two types of twins: natural twins and virtual twins. Virtual twins occur when there is too much similarity between two files in a data set. Natural twins are any two individual components that seem to be cut from the same cloth—or more aptly, kit. An example would be two faucets that are the same but for a very small physical difference. In this blog post, we’ll discuss five key reasons why your York furnace has a twinning error and how you can fix it.
Error Code 21: Ducting and Twinning
If the York control system identifies a problem with the ducting, it will produce an error code 21. This can occur when the system detects that the size of the ducting is incorrect for the furnace. For example, if the furnace is set to run with 6-inch ducting but an installer had put in 8-inch ducting, the system would detect that as a problem. In this case, the system needs to be reset by the person who installed it. The system will then automatically correct the error by switching to a smaller-ducting option.
Error Code 22: Combustion Efficiency and Twinning
If the York control system detects that the combustion efficiency is below 90%, it will produce an error code 22. The furnace will then attempt to correct itself by resetting itself to run at a lower temperature. A combustion efficiency below 90% means that the furnace is not burning the fuel (gas or oil) efficiently. This could be due to an improper fuel-to-air ratio, too-low furnace setting, a clogged filter, or a faulty burner. In this case, you’ll need to call a professional to diagnose and repair the problem. This error can also occur when parts of the furnace have been replaced with a twin-component that is not recognized by the control system.
Error Code 24: Electronic Air Cleaner and Twinning
If the York control system detects that the type of air filter has changed, it will produce an error code 24. This can occur if the installer replaces the filter type with a different type or if the system detects that the serial numbers don’t match. This can happen if a homeowner replaces the filter and doesn’t know that he or she needs to enter the new serial number. In this case, to reset the system, you can either again enter the correct serial number or change it back to the original. You also want to ensure that the correct filter is installed.
Error Code 26: Furnace Performance and Twinning
If the York control system detects that the burner performance has dropped below the required level, it will produce an error code 26. This can occur if the system detects that the air pressure has dropped below the recommended level. The standard pressure is 80 psi. In this instance, you’ll want to ensure that the filter is clean and the system is properly vented. You may also need to adjust the pressure according to the furnace’s instructions. If you replaced the burner, the new one may not be recognized by the control panel and can cause a twinning error. If you are unsure, you’ll want to discuss this with your installer.
Error Code 28: Condenser Performance and Twinning
If the York control system detects that the condenser performance has dropped below the required level, it will produce an error code 28. This can occur if the system detects that the air pressure has dropped below the recommended level. The standard pressure is 80 psi. In this instance, you’ll want to ensure that the filter is clean and the system is properly vented. You may also need to adjust the pressure according to the furnace’s instructions. If you replaced the condenser, the new one may not be recognized by the control panel and can cause a twinning error. If you are unsure, you’ll want to discuss this with your installer.
Summary
In summary, there are many reasons why your York furnace has a twinning error, including improper ducting, an incorrect air filter, a new burner or filter that the system doesn’t recognize, or even replacing the condenser with a different model! Fortunately, all of these problems are relatively easy to fix. All you need to do is figure out why your furnace has a twinning error, and you’ll be able to correct it quickly and easily.
