How to Fix an Armstrong Air Furnace Error Code

Do you have an Armstrong Air furnace? If so, you probably know that it’s a pretty awesome heating system. It’s high efficiency, with the ability to self-regulate and constantly monitor its performance. It has a lot of great features, like a filter check indicator light, a reset control, and dual pressure release valves to prevent overpressure in case of emergency. And it even comes with a user manual that is clear and concise and packed with helpful information! But as is often the case when we purchase high-end appliances, some small glitches need fixing from time to time. One common error code for the Armstrong Air Furnace is 10-01. This means that something went wrong during the initial setup phase of the furnace, resulting in some minor software issues. Here’s how to fix this error code if it appears on your control panel.

Check your computer board and wires

The first thing you’ll want to do is make sure the computer board and wires are connected properly. This is crucial! If the wires aren’t connected properly, then the error might be the computer itself, but since you can’t check that, you’ll have to replace the board instead. To do this, turn off your furnace, unplug all of the wires from the board and then remove the board from the furnace. Check the connections on the board and then plug everything back in.

Reset the computer

If your wires are connected properly, you’ll want to reset the computer. You do this by grounding the furnace. Continue by turning on the circuit breaker and then plugging in your furnace. If the error code doesn’t appear, then you’re good to go! If it does, then you’ll want to check the wires again. If all of the wires appear to be intact and plugged in, you might have a faulty computer board.

Fix any wiring issues

If you have a faulty wiring situation, you’ll end up with more error codes than just 10-01. In this case, you’ll want to check to make sure all of the wires are connected properly. You’ll also want to make sure that you have the right voltage going to your furnace. Otherwise, you might blow a fuse or trip a breaker and cause another error code.

Test the blower motor

If the error code still isn’t fixed and you’ve ruled out all other wiring issues, then you’ll want to test the blower motor. The blower motor is the part of the furnace that circulates the air throughout your home. To test the motor, you’ll want to start by grounding the furnace and turning on the circuit breaker. When you’re ready to test the motor, unplug your furnace. Then, test the wires from the motor to make sure that they’re getting power. If they aren’t, then you’ll need to replace the motor.

Reset your furnace

If you’ve tried everything and nothing seems to be working, then you’ll want to reset your furnace. To do this, you’ll need to turn off the circuit breaker and unplug your furnace. Then, you’ll want to press the reset button located at the bottom of the furnace. When you’re done, plug everything back in and turn the circuit breaker back on. Hopefully, this will reset everything, clear out any errors and get your furnace working again like new!


If you’re experiencing an error code on your Armstrong Air Furnace, don’t panic! This can easily be fixed if you follow the simple step-by-step process outlined above. You can keep your furnace in great condition for years to come by following these simple maintenance and error code clearing tips!