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why is my air handler blowing cold air

HVAC

The answer to 'why is my air handler blowing cold air' is that there could be several common causes, including a malfunctioning thermostat, a refrigerant leak, or a problem with the air handler itself. The air handler is the indoor unit that circulates the air through your home, and if it's blowing cold air when it should be warming the air, it indicates an issue that needs to be addressed.

Some common symptoms of an air handler blowing cold air include the air feeling colder than the thermostat setting, the air not warming up as expected, and potentially higher energy bills. The solutions can vary depending on the root cause, but may involve adjusting or replacing the thermostat, repairing a refrigerant leak, or servicing or replacing the air handler itself.

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Step-by-Step Guide

  1. 1

    Check the Thermostat

    First, make sure the thermostat is set to 'heat' and the temperature is set higher than the current room temperature.

  2. 2

    Inspect the Air Filter

    A dirty air filter can restrict airflow and cause the air handler to blow cold air. Replace the filter if it's dirty.

  3. 3

    Listen for Strange Noises

    If the air handler is making unusual noises like banging, grinding, or squealing, there may be an internal issue that requires professional repair.

Frequently Asked Questions

What should I do if my air handler is blowing cold air?

If your air handler is blowing cold air, the first step is to check the thermostat settings to ensure it's set to heat. If the settings are correct, you'll likely need to call an HVAC professional to diagnose and repair the issue.

How do I know if my air handler needs to be replaced?

If your air handler is more than 10-15 years old, blowing cold air consistently, or making unusual noises, it may be time to replace the unit. An HVAC technician can assess the condition and provide recommendations.

Can I fix an air handler blowing cold air myself?

For minor issues like adjusting the thermostat, you may be able to troubleshoot and fix the problem yourself. However, for more complex problems like refrigerant leaks or internal air handler issues, it's best to call in a professional HVAC technician to properly diagnose and repair the system.

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