If your furnace isn’t turning on, don’t stress! We’ve got some simple troubleshooting steps you can try. With winter here, it’s time for your furnace to shine this season and the next. As a homeowner, there’s nothing worse than expecting a warm, cozy home only to discover your furnace isn’t working. 

Before you panic and call your Reynoldsburg Heating & Cooling pros, remember there are a few common issues that could be causing your heating system to act up. So, let’s dive into a quick and easy troubleshooting guide to help you figure out the problem and get it sorted. 

Check the Power Source If Your Furnace Isn’t Powering On  

The first step when troubleshooting is to check the power source. After all, “With great power, comes great responsibility,” or something like that!

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In all seriousness, there are two main power sources to look at, depending on your furnace type: the circuit breaker or the gas/oil supply. 

The Circuit Breaker: If your furnace runs on electricity, checking the circuit breaker is a must. Sometimes, the circuit breaker for your furnace can trip, cutting off power to the heating system. Take a peek at your electrical panel and see if any switches are in the “off” position or stuck between “on” and “off.” It’s more common than you’d think for a breaker switch to look like it’s on when it’s actually in between. 

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To fix this, reset any tripped switches by flipping them fully to “off” and then back to the “on” position. If it trips again, there might be an underlying electrical issue that needs a pro’s attention. Also, keep in mind that circuit breakers can wear out over time, so if this keeps happening, it might be worth chatting with a professional about whether you need a circuit breaker repair or replacement. 

The Fuel Supply: If you have a fuel-burning furnace, it needs a steady fuel supply to work. Issues like a closed valve or an empty oil tank can stop your furnace from turning on. While you can check if the gas valve is positioned right, if you think something’s off with the gas pressure, it’s best to leave that to the professionals. 

Check the Thermostat If Your Furnace Isn’t Powering On  

First things first, let’s take a look at the thermostat. It acts as the command center for your HVAC system, so if your furnace isn’t turning on, the thermostat might be the simple fix you need. Make sure it’s set to “heat” and that the temperature is set higher than what it currently is in your room, giving your heating system a chance to warm things up.  

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Sometimes, the thermostat itself can be the issue. It happens! Check the batteries and replace them if needed. If your thermostat is still not responding, it might be time to call in an HVAC technician for a proper diagnosis.  

Check the Air Filters If Your Furnace Isn’t Powering On  

Have you checked your HVAC system’s air filters? It might seem minor, but a clogged filter can really mess with your furnace’s performance. A dirty filter restricts airflow, making the furnace overheat and shut down as a safety precaution. So, if you’re still having issues, checking the air filters is a smart move.  

If they’re dirty, just swap them out for a new one. Remember, it’s a good idea to change your air filter regularly—ideally every 1-3 months—to boost your HVAC system’s efficiency and extend its lifespan.  

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Check if the Ducts are Blocked If Your Furnace Isn’t Powering On  

Did you know blocked ducts can stop your furnace from working properly? When airflow is blocked, it can signal to your furnace that something’s not right, and it might shut down as a result. If something has fallen into the ductwork, certain furnaces will go into safety mode and won’t turn on.  

This is a safety feature to prevent carbon monoxide poisoning in your home. While it doesn’t happen often, it’s crucial to address any obstructions quickly for your safety.  

Check the Drain Pan If Your Furnace Is Not Turning On  

Modern furnaces have a few safety features, like a drain pan that can trigger a safety switch if it collects too much moisture, preventing the furnace from running. If your issue is still not sorted out, find the drain pan (usually under the furnace) and carefully empty it if it’s full of water.  

If you notice the drain pan fills up often, it might indicate a drainage problem with your HVAC system. In that case, it’s time to give us a call.  

Let’s Wrap It Up  

Dealing with a furnace that won’t turn on can be a hassle, but you can usually tackle this issue with the troubleshooting tips above. By checking the circuit breaker, thermostat, air filter, ducts, drain pan, pilot light, and fuel supply, you can often figure out the problem yourself.  

But if that doesn’t solve the issue, remember that your Reynoldsburg Heating & Cooling team is always here to help! With our experience in furnace repair and maintenance, we’re ready to get your furnace back up and running in no time.  

Your comfort and safety are super important, and sometimes, expert help is the best way to go. Don’t hesitate to reach out to us! You can contact Reynoldsburg Heating & Cooling today at (614) 879-3789 or schedule an appointment online now by clicking here!