Family Owned & Operated — Since 1955

Why is My Furnace Blowing Cold Air?

Discovering that your furnace is blowing cold air when you’re expecting warmth can be frustrating. Several factors could contribute to this issue, and understanding the potential reasons is the first step in finding a solution.

Possible Causes:

1. Thermostat Settings:

  • Check your thermostat to ensure it’s set to the desired temperature. Incorrect settings can lead to the circulation of cold air.

2. Pilot Light or Ignition Issues:

  • A malfunctioning pilot light or ignition system may prevent the furnace from producing hot air. Professional inspection and repair are necessary in such cases.

3. Dirty or Clogged Air Filter:

  • A dirty or clogged air filter can restrict airflow, causing the furnace to overheat and blow cold air. Regularly changing or cleaning the filter is essential for proper functionality.

4. Issues with the Thermocouple:

  • A faulty thermocouple can disrupt the gas supply to the furnace, resulting in cold air blowing through the vents.

5. Ductwork Problems:

  • Leaks or blockages in the ductwork can compromise the efficient distribution of hot air throughout your home.

Does this Mean It’s Time to Replace My Furnace?

Experiencing your furnace blowing cold air doesn’t necessarily mean it’s time for a replacement. Many issues can be resolved through professional inspection and targeted repairs. However, if your furnace is aging or experiencing frequent breakdowns, it might be worth considering an upgrade for enhanced efficiency and reliability.

What Should Be Done to Get My Furnace to Blow Hot Air?

If your furnace is blowing cold air, it’s crucial to address the root cause promptly. Here are some steps to take:

1. Check Thermostat Settings:

  • Ensure the thermostat is set to the desired temperature, and the heating mode is engaged.

2. Inspect Pilot Light or Ignition:

  • If you’re comfortable, check for a lit pilot light or functioning ignition system. If unsure, seek professional assistance.

3. Change or Clean the Air Filter:

  • Replace or clean the air filter to ensure proper airflow and prevent overheating.

4. Schedule Professional Inspection:

  • For complex issues, such as problems with the thermocouple or ductwork, schedule a professional inspection and repair service.

Serving Communities Beyond Hudson and Baldwin

Boldt’s Plumbing & Heating is dedicated to providing comprehensive HVAC services to communities beyond Hudson and Baldwin. Our service areas include River Falls, New Richmond, Roberts, Hammond, Somerset, Ellsworth, Prescott, Woodville, Spring Valley, and Lakeland. We extend our expertise to these areas, ensuring residents receive prompt and effective furnace solutions.

Contact Us for a Free Estimate

If you’re experiencing issues with your furnace or considering an upgrade, contact Boldt’s Plumbing & Heating for a free estimate. Call our Baldwin, Wisconsin office at 715-684-3378 or our Hudson, Wisconsin office at 715-386-4445. Let us help you restore warmth and comfort to your home.

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