Why Is My Furnace Running But Not Getting Warm?

When New Mexico’s cool weather sets in, it’s the perfect time to break out the blankets and hot chocolate. However, enjoying the seasonal shift when your furnace is operating but not heating your home can be challenging. This issue can compromise your comfort, leaving your teeth chattering.

Robbins Heating & Air Conditioning offers reliable repair services for Farmington heaters. When your unit is running but not getting warm, you can trust us to provide a solution that restores warmth to your home.

Whether you’re experiencing signs of a faulty heat exchanger or pilot light issues, you can count on Robbins to restore the unit to full efficiency. Our team is here to help you understand why your unit isn’t producing warm air and how to fix it.

Why Does My Furnace Blow Cold Air During Operation?

Several issues can cause your unit to run without adequately warming up your home. Understanding these potential causes will help you troubleshoot and determine when it’s time to call in our professionals.

1. Thermostat Issues

Your thermostat is the brain of your HVAC system. If it’s set incorrectly or malfunctioning, your heater might not produce the warmth you expect. Ensure the thermostat is on the “heat” setting. double-check that the temperature is higher than the current room temperature.

Also, ensure the fan is set to “auto” rather than “on.” The “on” setting can cause the fan to blow air even when the system isn’t heating.

2. Clogged Air Filter

A dirty or clogged air filter can prevent adequate airflow through your furnace. The restriction makes it difficult for the system to distribute warm air throughout your home.

If your unit isn’t producing warm air, it might be time to check the air filter. Replacing the filter every 1-3 months can help maintain proper airflow and system efficiency.

3. Blocked Furnace Burner

If your system’s burner is blocked or dirty, it can prevent the unit from igniting properly. When the burner is obstructed, it restricts the flow of gas and air, which is necessary for creating heated air. A blocked burner can cause your unit to run but blow cool air instead.

4. Dirty Flame Sensor

The flame sensor is a critical safety feature that ensures the gas valve closes if the furnace doesn’t detect a flame. If the sensor is dirty or malfunctioning, it may not detect the flame. This issue causes the system to shut off the burners and blow cold air.

5. Insufficient Gas Supply

If your gas furnace isn’t receiving enough gas, it won’t be able to produce the heat needed to warm your home. This can happen if there’s a problem with the fuel line or the gas valve isn’t opening properly. In such cases, your unit can run without generating any warmth.

What To Do When Your Heater Is Not Heating

When your unit isn’t warming your home properly, there are a few steps you can take before calling our professionals:

• Ensure the thermostat is on the “heat” setting and the temperature is appropriately adjusted.
• Replace a dirty or clogged filter to improve airflow and efficiency.
• If you’re comfortable doing so, check the pilot light or ignition system for any issues.
• Make sure vents and registers are open and unobstructed to allow proper airflow.

Robbins Heating & Air Conditioning is prepared to assist with all your heat-related needs. When your Farmington HVAC system is giving you grief, trust our local heater technicians for reliable solutions.

My Furnace Is Running But Not Heating: When To Call Robbins

If you’ve checked the basics and your furnace is still running without heating your home, it’s time to call the experts at Robbins Heating & Air Conditioning. Our crew can pinpoint and correct issues with your system to restore your home’s comfort.

With over 20 years of heater repair experience, our company is your go-to provider of repair services in New Mexico. With 30-day labor guarantees and quick response times, you can count on us to combat heater issues efficiently.

Efficient Farmington, NM, Furnace Repair Services

If you question the efficiency of your heater, don’t wait to address the issue. Furnace malfunctions can lead to increased energy costs, discomfort and safety hazards.

Robbins Heating & Air Conditioning will ensure your furnace is running effectively, keeping your home warm during the cooler season. Contact our Farmington HVAC technicians to schedule a service appointment!