DIY Furnace Troubleshooting: Simple Fixes Before Calling A Pro

As the winter season sets in, the last thing any homeowner wants is a malfunctioning furnace. Fortunately, not all furnace issues require the immediate assistance of a professional HVAC contractor. There are several troubleshooting steps you can take to address common furnace problems on your own before deciding to call in the experts. This article offers a useful guide for basic furnace troubleshooting, providing simple fixes that can save you time and money.

Check the Thermostat:

Before assuming there is a problem with your furnace, start by checking the thermostat. Ensure it is set to "heat" and the temperature is set higher than the room's current temperature. If the thermostat is not functioning correctly, a simple battery replacement or recalibration may do the trick.

Inspect the Air Filters:

Clogged or dirty air filters can obstruct airflow and put unnecessary strain on your furnace, leading to reduced efficiency and potentially causing it to shut down. Regularly replace your air filters, especially during the winter months when your furnace is in frequent use.

Verify the Power Supply:

It may sound simple, but sometimes, the power supply to your furnace can be interrupted. Check to make sure that the furnace is receiving power. If it's not, check the circuit breaker or fuse box to see if a fuse has blown or if the breaker has tripped. Reset or replace as necessary.

Clear Away Obstructions:

Your furnace needs proper airflow to function efficiently. Check the area surrounding your furnace for any obstructions, such as debris, furniture, or storage items. Clearing away these obstructions can improve airflow and prevent overheating.

Inspect the Pilot Light:

If you have a gas furnace, check the pilot light. If it is out, carefully follow the manufacturer's instructions to relight it. However, if you notice a strong smell of gas or suspect a gas leak, immediately turn off the gas supply and contact a professional.

Clean the Vents and Ducts:

Over time, dust, pet hair, and debris can accumulate in the vents and ducts, reducing airflow and affecting the overall performance of your furnace. Regularly clean and vacuum these areas to ensure proper airflow throughout your heating system.

While these troubleshooting steps can resolve some common furnace issues, it's essential to recognize the limits of DIY repairs. If your furnace problem persists or you encounter more complex issues, it is strongly recommended that you consult a professional HVAC contractor. They have the expertise and tools to diagnose and repair any underlying problems.

Contact a furnace repair technician to learn more. 

About Me

Maintaining Your HVAC Unit

My husband and I live in an older brick ranch home. Since we moved into this house ten years ago, we’ve been slowly renovating it. We installed new hardwood and tile floors. We’ve also replaced cabinet hardware and installed a new backsplash in the kitchen. While we’ve definitely completed some upgrades, we still have a lot of work to do. One of our future purchases will be a new HVAC system. Our unit is twenty years old. However, to keep it running efficiently for the time being, we have it regularly inspected. In order to properly maintain the air conditioning unit at your home, you should consider having an HVAC contractor examine it annually. On this blog, you will discover the things an HVAC contractor looks at during an annual inspection.

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