goodman furnace no error codes

The home you live in might feel like a cozy, safe space. However, your house also has its own set of rules and regulations. These include a variety of rules regarding the furnace that keeps you warm in the winter and cool in the summer. Even though it’s one of the smaller appliances in your home, a malfunctioning or non-working furnace can leave you feeling chilled to the bone, especially during those cold winter nights. To avoid that from happening, it’s important to understand the ins and outs of your Goodman furnace’s error codes should anything go awry. If you are not sure about what any given light or sound means when it comes to your furnace, this article is for you. Read on to learn more about your Goodman furnace’s error codes and what they mean:

What to do when your Goodman furnace throws an error code

There are a few different error codes your furnace’s system may throw at you: it’s important to know what they mean, how to fix them, and how to avoid them in the future. The first step to solving a problem is to know it exists, right? Below, we’ve listed a few of the most common error codes you may come across: o Power interlock error: The furnace is either off or not receiving power. This can be due to a tripped circuit breaker or a plugged-in thermostat. Make sure your thermostat is plugged in and powered on. If it still doesn’t work, you may have a tripped circuit breaker. o Power supply error: This error code occurs when the furnace is receiving power but is unable to send it to the system. This can happen when the pressure switch is broken or there’s a problem with the blower. o Blower error: This error code is triggered when the furnace is receiving power and actively blowing air. However, something is blocking the airflow or the blower is broken. o Furnace error: The furnace is not receiving power or the gas is shut off completely.

Check the filter

This might sound like an odd solution to the problem, but it works more often than you might think. Check the filter to see if it’s blocked or dirty. If it is, clean or replaces it and restart your furnace. If it isn’t dirty, but the error code remains, the problem could be something else. In addition to improving airflow in your furnace, a clean filter will also help extend the life of your furnace. Dirty filters are one of the leading causes of short furnace lifespans. Cleaning the filter doesn’t just ease the flow of air through the system; it also keeps your home cleaner.

Reset the thermostat

If you’ve checked the filter and it’s clean, the only thing left to do is reset the thermostat. First, unplug the thermostat for about 30 seconds before plugging it back in. If the error code stays or you see no change, the thermostat might be broken. Now, this isn’t always the case. Sometimes, the thermostat just needs a little bit of resetting. If the error code disappears and everything works as normal, you’ve discovered the problem and can work to prevent it from happening again.

Check your condenser coils

If the above two steps failed to solve the problem, you should check your condenser coils. This is the part of your furnace that transfers the heat from inside the home to the outside air. If the heat isn’t properly transferred, the furnace won’t function properly. While you’re checking the condenser coils, make sure they’re clean and free of debris. If they aren’t, clean them with a brush or sponge dipped in water. Be careful and don’t damage the coils. If they’re clean and you have power, but the error code stays, there’s a problem with the thermostat.

Turn off the circuit breaker

If none of the above steps worked, the problem may lie in the circuit breaker. First, turn off the circuit breaker that controls the furnace and check for blown fuses or a tripped circuit breaker. Again, make sure the circuit breaker is off before attempting to check it. If there’s no sign of a blown fuse or tripped circuit breaker, there might be a problem with the furnace itself. If this happens, you’ll need to call a professional to fix the issue.

Call a professional

If nothing on the above list works and you’ve tried to reset the thermostat several times, it might be time to call a professional. A furnace technician can diagnose the problem and let you know what needs to be done to fix it. If you’ve followed this article and still can’t get your furnace to work properly, a professional is your best option. A professional can diagnose the problem and give you a quote on a solution. They can also help you save money by suggesting some of the above tips before they come out.


If you find yourself having to reset your thermostat every few days or dealing with an error code on your furnace, it’s time to troubleshoot the problem. With this guide, you should be able to identify the problem and fix it yourself before calling a professional out. If you’re experiencing issues with your furnace, it’s important to identify the problem as soon as possible. Waiting too long can lead to significant damage and thousands in repair costs. With this guide, you should be able to solve most furnace issues yourself.