Troubleshooting Trane Furnace Error Code E12
Trane furnaces are known for their reliability, which is why they’ve been trusted by homeowners for decades. However, even the most reliable furnace can experience issues from time to time. When this happens, you may see an error code appear on your thermostat or furnace control panel. If you see Trane E12 or another error code when using your Trane furnace, don’t panic! These codes are often quite simple to fix once you know what they mean. Here are some common Trane E12 troubleshooting tips that should help get your system back up and running in no time.
Error Code E12 Meaning
The error code E12 on your Trane furnace indicates that the furnace has detected a problem with the furnace’s thermocouple. The thermocouple is a device that measures the temperature of the air in the ductwork. If the thermocouple detects that there is an unsafe level of heat, it will shut down the furnace to protect your home and family. If this happens, the error code E12 will appear on your thermostat or furnace control panel. It’s important to note that the error code E12 is actually a symptom of a problem. The thermocouple may be faulty, but so could many other pieces of the furnace. The first step in troubleshooting the error code E12 is to try and figure out what the exact issue is.
Reset Trane Furnace Error Code E12
The first step in Trane furnace error code E12 troubleshooting is to try resetting the error code. This is often as simple as flipping a switch on your thermostat. The specific method for resetting the error code will vary depending on the type of thermostat you have. Ethernet thermostats can be reset by unplugging the thermostat and plugging it back in. In some cases, you may need to unplug the furnace. Wireless thermostats can be reset by unplugging the thermostat and plugging it back in. Some older models have a reset button that will need to be pressed.
Check Your Filters
One of the first places to start Trane furnace error code E12 troubleshooting is by checking your furnace filters. A dirty filter can cause issues with your furnace, so it’s good practice to check your filters once a month to make sure they are free of debris. If your filters are excessively dirty, it’s a good idea to replace them. Clean filters will improve airflow through your furnace, which will translate to better temperature control in your home. E12 error code issues caused by dirty filters can be fixed by cleaning your filters. However, if your filters are extremely dirty, it may be time to replace them.
Check Your Condenser Coils
Your furnace’s condenser coils are located on the outside of your home. These coils help transfer heat from your furnace to your home’s air. If these coils become clogged with dirt and debris, they may not be able to properly transfer heat. This can cause your furnace to overheat, which may result in the error code E12. If you see Trane E12 on your furnace control panel, it may be a good idea to check your condenser coils. You can do this by removing the grill from your outdoor unit. If you see clogs or debris, it’s a good idea to clean these out. If your outdoor unit has a filter, you can also check this to make sure it’s clean.
Check Your Blower
The blower wheel inside your furnace is responsible for pushing air through the ductwork. If the blower wheel is faulty, it may cause your furnace to overheat. This can result in the error code E12. To check your blower, you will first need to remove the cover at the base of your furnace. After removing the cover, you should be able to see the blower wheel inside your furnace. If there is any visible damage to the blower wheel, it may be time to replace it. If your blower appears to be functioning normally and you’re still seeing the error code E12 on your furnace, you may want to contact a Trane repairman. There may be a more serious issue that needs to be addressed.
Conclusion
The error code E12 means that there is a problem with the thermocouple inside your furnace. This is a good thing because it means your furnace is doing its job by shutting itself down. The best way to fix the E12 error code is to clean your filters, check your condenser coils, and make sure your blower wheel isn’t damaged. If you follow these steps, you should be able to get your Trane furnace back up and running in no time.
