It’s the middle of winter and your furnace starts acting up. You don’t want to call your HVAC technician until you know if it’s a major repair or just a quick fix you can do on your own. How can you find out, though? Here are a few tips for heater troubleshooting.
- Check the unit. Sometimes, the obvious solutions get overlooked, which is why heater troubleshooting is so important. Make sure your heater is switched on and that the circuit breaker hasn’t been tripped. Check the furnace door as well, since the system often won’t run if the door is open. Then try resetting the system, as a reboot often gets things working again.
- Check the thermostat. Your thermostat batteries should be replaced once a year to ensure that the unit is in proper shape and is responsive. Also make sure the thermostat is set to “Heat” rather than “Cool” or “Fan Only.”
- Check the gas. Is the gas valve on? Without it, fuel can’t flow to the system and heat can’t be produced. Follow the gas line to the meter and make sure the handle at the end is parallel to the gas pipe and not perpendicular to check off one of the most crucial heater troubleshooting steps.
- Check the ductwork. Even pinhole leaks in your ducts can reduce airflow significantly. Look for tears and other damage, then repair it with metal tape or mastic sealant.
- Change the filter. Your air filter clogs more quickly in winter due to an excess of contaminants in the air. A clogged filter in turn restricts airflow, keeping your furnace from working properly. Check the filter, and if it’s gray, opaque, and covered in dust and debris, replace it.
- Flush drain lines. Your drain line removes several gallons of water from your furnace every day. If there’s a clog or sediment buildup, it can keep the water from being drained off and the furnace will stop working. Remove the hose and run water and bleach through it. Let it sit for a few minutes, then rinse it out and replace it.
If, after taking these heater troubleshooting steps, your furnace still isn’t working, schedule an appointment with Air Assurance. Our expert heating and cooling services ensure your Broken Arrow HVAC systems run smoothly and efficiently.