Your air conditioner condenses gallons of moisture from the indoor air every day and expels it outdoors through the built-in drainage system. If you see evidence of leaking water, it’s a telltale sign that there’s a problem somewhere in the system. Here’s how to troubleshoot a leaking air conditioner to learn whether you can fix it yourself or need to call an HVAC pro for help.
Condensate Pan Problems
Your A/C drainage system has a pan that sits below the indoor evaporator coil to collect condensed water. If the pan is badly rusted, cracked or missing, water will puddle on the floor underneath your air handler. Replacing the pan is an easy fix.
Clogged Air Filter
If your air filter gets clogged up with dust and debris, it can reduce airflow through the system enough to cause a frozen evaporator coil. When the coil thaws, the excess water can overflow the collector pan. Installing a clean filter can fix this issue, and checking it monthly and replacing it regularly can prevent a recurrence.
If you investigate a puddle underneath the air handler unit and find a frozen evaporator coil but the air filter isn’t dirty, listen for a hissing noise coming from the coil or refrigerant lines. This noise usually indicates a refrigerant leak that needs immediate attention to avert serious component damage, so call your HVAC contractor right away.
Condensate Drain Blockage
Mold and algae can thrive in the wet, warm environment of a condensate drainage system and eventually block the drain line, resulting in a water backup. You can solve this problem by suctioning out the blockage with a wet/dry vac, then flushing out the line with a half bleach, half warm water solution.
Bad Condensate Pump
If your A/C has a motorized pump on the condensate drainage system and it goes bad, water will back up and overflow the collector pan. If you suspect this has happened, call in an HVAC expert.
For help dealing with a leaking air conditioner in your Grand Traverse County home, contact us today at Team Bob’s Heating Cooling Plumbing.
Our goal is to help educate our customers in Traverse City, Michigan and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about leaking air conditioners and other HVAC topics, download our free Home Comfort Guide or call us at 231-714-6196.
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