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Why is my air handler leaking water

HVAC

The answer to 'why is my air handler leaking water' is that the most common causes are a clogged drain line, a cracked drain pan, or a problem with the condensate pump. Symptoms include water pooling around the unit, wet floors, or water dripping from the unit. Solutions may involve clearing the drain line, replacing the drain pan, or repairing/replacing the condensate pump.

If the leak is minor, you may be able to fix it yourself by clearing the drain line or replacing the drain pan. However, if the issue is with the condensate pump or requires more extensive repairs, it's best to call a professional HVAC technician. They can diagnose the problem and make the necessary repairs to stop the leak and prevent further water damage.

Sources

1.
ENERGY STAR— authority
2.
ACCA— authority
3.
DIY Network— guide

Step-by-Step Guide

  1. 1

    Clear the drain line

    Use a wet/dry shop vacuum or drain line cleaner to remove any debris clogging the drain line.

  2. 2

    Inspect the drain pan

    Check the drain pan for cracks or damage and replace it if needed.

Frequently Asked Questions

How do I clear a clogged air handler drain line?

To clear a clogged drain line, you can try using a wet/dry shop vacuum to suck out any debris or use a drain line cleaner product. If that doesn't work, you may need to disconnect the drain line and manually clean it out.

How do I know if I need to replace the drain pan?

If you see visible cracks or damage to the drain pan, or if water is pooling around the base of the air handler, it's likely time to replace the drain pan.

When should I call an HVAC technician for a leaking air handler?

If the leak is caused by a problem with the condensate pump or requires more extensive repairs, it's best to call a professional HVAC technician to diagnose and fix the issue.

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