customized HVAC solutions

Heating tips are essential now that winter is here, and it’s time to turn up the heat. A reliable furnace keeps your home warm and comfortable. However, like any mechanical system, your furnace may malfunction. It’s important to know what to do in such cases. In this post, we will discuss troubleshooting tips to help determine why your furnace has stopped working and how you can fix it.


Your HVAC system is a major investment that requires care and attention to ensure optimal performance and longevity. By following these simple steps, you can show some love to your HVAC system this winter and enjoy a comfortable and healthy indoor environment while saving on energy bills. Mechanical Air can help you with regular maintenance and repair services for your HVAC system, serving Fresno and Clovis. Don’t hesitate to call us at 559-288-6157 for all your HVAC needs.

Check the Thermostat

The first thing to check when your furnace is not working is the thermostat. Ensure the temperature is set correctly, and the mode is on “heat.” Most new thermostats have batteries that may need replacement, so replace them if necessary. If your thermostat still doesn’t work, it may need replacement.

Check the Air Filter

A clogged air filter can cause your furnace to stop working. If your furnace isn’t working, check the air filter for dirt and debris. A dirty air filter reduces airflow, which can cause the entire heating system to malfunction. Replace the air filter and see if that solves the problem.

Check the Circuit Breaker

If your furnace has stopped working, an electrical issue could be the cause. Check the circuit breaker and ensure the one controlling your furnace is not tripped. Turn it off and on again to ensure it is not stuck in the middle.

Check the Pilot Light

If you have an older furnace, it may have a pilot light that needs manual lighting. Refer to your manufacturer’s manual for instructions. If you have a newer furnace and the pilot light is off, it could indicate a bigger problem, so you may need to call a professional.

Call a Professional

If none of these steps work, call a professional to diagnose and fix the issue. Trying to repair complicated furnace problems on your own can be dangerous. Experienced technicians, like those at Mechanical Air, have the tools and expertise to inspect, diagnose, and fix any furnace issues safely and quickly.


A working furnace is critical for keeping your home comfortable, especially during the harsh winter months. With the tips we have covered above, you can troubleshoot your furnace issue before calling in the professionals. However, if none of these tips work, it’s time to call Mechanical Air for fast and reliable furnace repair services. Don’t let a broken furnace leave you out in the cold! Give us a call at 559-288-6157 and we’ll get your furnace running smoothly again.

Follow us on Facebook!

Read our reviews here!

Similar Posts