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Furnace Error Code List: What Does It Mean?
When your furnace is malfunctioning, it can be difficult to know exactly what’s wrong. Is your furnace broken? Is there a sensor that needs to be reset? Is there a code you need to enter? If your furnace has given you an error code, the good news is that it’s not broken. In fact, most error codes are indicators that something isn’t quite right. With the help of this article, you should be able to diagnose and correct the problem with your furnace. Some error codes are more common than others, depending on how old your furnace is and how often it’s used. Some of these codes may even seem obvious! Regardless of whether your system presents you with an error code or not, all furnaces have sensors and components that may break down over time.
Error Code 11: Blower Failure
This error code occurs when the blower motor – the part of your furnace that circulates air through your home – is overheating. If the motor is not working properly, it may overheat, which will trigger the blower failure error code. The easiest way to correct this problem is to manually shut down the furnace and allow it to cool off. If you’re in the middle of a cold snap, you may not want to do this, but make sure that the blower is not running when you do shut down the furnace. After the furnace has cooled down, you can restart it. If the error code persists, you may need to replace the blower itself. Blowers are fairly inexpensive, and the replacement process is fairly straightforward. If you’ve done any home repairs before, you should be able to handle the blower replacement yourself. Otherwise, you can call a furnace repair technician to replace the blower for you.
Error Code 17: Thermostat Malfunction
If you see this error code, it means that your furnace’s thermostat isn’t communicating with the furnace properly. If you’ve followed the cleaning instructions in your furnace’s manual, you may have cleaned the thermostat’s contacts too much. You should always clean your thermostat’s contacts, but you should use a soft cloth and a tiny bit of soap. The best way to correct this problem is to clean the thermostat again. After the thermostat is clean, reset it by unplugging it from the wall and pressing the “reset” button. If the error code persists, you may need to replace the thermostat entirely.
Error Code 20: Furnace Broken
This is one of the most serious error codes you can see. It means that there is a short in the furnace’s circuitry. The short may be visible or internal – if it’s internal, you won’t be able to see it. The best way to correct this problem is to call a professional furnace repair technician. Broken circuits can be dangerous, so you should always leave this job to a qualified professional.
Error Code 21: Furnace Fan Repair Needed
If you see this error code, it means that there is a problem with the furnace’s fan. Fingers crossed, you will never see this error code as it’s a sign of a very serious problem. The best way to correct this problem is to have the fan replaced. You may be able to do this yourself if you’re comfortable with home repairs. Otherwise, you can call a furnace repair technician to replace the fan for you.
Error Code 24: Condenser Malfunction
If you see this error code, it means that the furnace’s condenser is malfunctioning. The condenser is the part of the furnace that cools the air before it enters your home. If you see this error code, try to turn the furnace off and on again to see if the problem persists. If it does, you may need to replace the condenser. Condensers are simple and inexpensive, so they’re easy to replace. You can do it yourself or call a furnace repair technician if you’re not comfortable tackling the job.
Error Code 28: Furnace Temperature Sensor Malfunction
If you see this error code, it means that the furnace’s temperature sensor isn’t working properly. The sensor is there to keep your furnace from running when the air in your home is too hot or cold. Once again, this error code is a sign that there is a problem with the sensor. To correct this problem, you can try to clean the sensor and reset the furnace. If the error code persists, you may need to replace the sensor.
Final Words
Furnace error codes are common, but they don’t always mean that there’s a problem with your furnace. They can also indicate a problem with your thermostat or your house’s wiring. If an error code appears on your furnace’s display, don’t panic! Most of the time, there’s a simple solution. With the help of this article, you should be able to diagnose and correct the problem with your furnace.
