Troubleshooting Problems with Your Furnace This Winter

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Troubleshooting Problems with Your Furnace This Winter

Technician looking at home furnace

As the winter season approaches, the need for a well-functioning furnace becomes more apparent. However, like any other appliance in your home, furnaces can experience issues that affect their performance. Here are some common furnace problems you might encounter this winter and how to troubleshoot them.

1. Furnace Doesn't Start

If your furnace doesn't start, it could be due to various reasons, such as a tripped circuit breaker, a blown fuse, or an issue with the thermostat. Check your home's electrical panel and replace any blown fuses or reset the circuit breaker if needed. If the problem persists, you may have a faulty thermostat. In this case, it's best to call a professional HVAC technician.

2. Not Enough Heat

When your furnace is running but not producing enough heat, it could be due to a dirty air filter blocking the airflow. Changing your air filter regularly (every 1-3 months) can help prevent this issue. If the problem continues after changing the filter, there might be a more serious issue like a damaged blower motor or a problem with the burner.

3. Furnace Runs Continuously

A furnace that runs continuously can lead to high energy bills and excess wear and tear on the unit. This issue often results from a faulty thermostat or problems with the furnace's limit switch. Try adjusting the thermostat settings first. If this doesn't resolve the issue, it's best to seek professional help as dealing with the limit switch requires technical knowledge.

4. Unusual Noises

While some noise from your furnace is normal, unusual sounds like banging, squeaking, or rattling could indicate a problem. These noises could suggest loose or damaged parts, or even issues with the motor. Don’t ignore these noises; instead, call a professional to inspect your system.

5. Frequent Cycling

If your furnace is frequently turning on and off, or "cycling," it could be due to an oversized unit, a dirty filter, or thermostat issues. Start by replacing the air filter and checking the thermostat settings. If the problem persists, consult with a professional.

6. Furnace Blowing Cold Air

A furnace blowing cold air can be caused by several issues, such as a faulty thermostat, a problem with the pilot light, or issues with the gas supply. Check the thermostat settings and ensure the pilot light is lit. If you still experience the issue, it's advisable to call a professional, especially if the problem might be related to the gas supply.

Furnace Repair Services in Milpitas

While these troubleshooting tips can help identify some common furnace problems, it's always best to consult with a professional HVAC technician when in doubt. Dealing with furnaces can be complex and potentially dangerous, especially when it involves electrical components or gas supplies. The furnace experts at Comfort Energy, Inc. can help prevent these issues, troubleshoot problems, and ensure your furnace keeps your home warm all winter long. 

Give us a call or visit us online to get started.

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