Expert Tips for Common Furnace Repairs: How to Keep Your Furnace Running Smoothly

As an HVAC technician with over 10 years of experience, I have encountered numerous furnace problems. From faulty thermostats to gas leaks, there are a few common issues that homeowners should be aware of when it comes to their furnace. In this article, I will discuss the top 10 most common furnace repairs and provide some tips on how to prevent them.

The Thermostat Doesn't Work

One of the most common furnace problems is a malfunctioning thermostat. This can cause your furnace to not turn on or off when it should, resulting in inconsistent temperatures in your home.

If you notice that your thermostat is not working properly, it is best to call a technician to take a look at it.

Flickering, Weak or Oddly Colored Pilot Light

If you have a gas furnace, you may also encounter issues with the pilot light. A flickering or weak pilot light can indicate a problem with the gas supply or the thermocouple. Additionally, if the pilot light is an unusual color, such as yellow or orange, this could be a sign of a carbon monoxide leak. It is important to call a technician immediately if you notice any of these issues.

Strange Odors Coming from the Furnace

If you smell something unusual coming from your furnace, it is important to address it right away.

If you smell something burning or like gasoline, this could indicate a serious problem and you should call a technician immediately. If you smell something like rotten eggs, this could be a sign of a gas leak and you should evacuate your home and call 911.

Short Cycling

Short cycling refers to when your furnace turns on and off frequently, or has short cycles. In very cold climates, this may be normal and necessary to maintain a comfortable temperature in your home. However, if you notice this happening in milder weather, it could be a sign of a problem with your furnace.

Possible Causes of Short Cycling

There are several potential causes of short cycling that you should investigate.

These include a dirty air filter, a clogged exhaust vent, or a faulty thermostat. It is important to address these issues as soon as possible to prevent further damage to your furnace.

Preventing Furnace Repairs

While some furnace problems are unavoidable, there are steps you can take to prevent frequent repairs. One of the best ways to keep your furnace running smoothly is to schedule regular maintenance with a professional technician. They can clean and inspect your furnace, catching any potential issues before they become major problems. Additionally, it is important to regularly change your air filter.

A dirty air filter can cause your furnace to work harder and less efficiently, leading to potential breakdowns. It is recommended to change your air filter every 1-3 months, depending on the type of filter and the level of use.

When to Call a Professional

While it may be tempting to try and fix furnace problems yourself, it is not recommended. Furnaces are complex systems that require specialized knowledge and training to repair. Attempting to fix a furnace without proper training can be dangerous and may result in further damage. If you notice that your furnace needs frequent repairs or is not functioning properly, it may be time to consider replacing it.

A furnace that needs constant repairs can end up costing you more in the long run than investing in a new, more efficient system.

In Conclusion

In summary, there are several common furnace repairs that homeowners should be aware of. These include issues with the thermostat, pilot light, and strange odors. It is important to address these issues as soon as possible to prevent further damage and ensure the safety of your home. Regular maintenance and changing your air filter can also help prevent frequent repairs.

And remember, when in doubt, always call a professional for help.