Heatwaves and scorching temperatures, especially during Ohio’s hot summer season, have probably put your air conditioner to an intensive test. And sometimes, this rigorous cycle of constantly running can result in your AC leaking water – a sight that’s naturally alarming to any homeowner. But keep in mind that it is common. Luckily, your trusted professionals at Washington Court House Heating & Cooling are here to help you pinpoint what’s going on and help you get everything back up and running once again. 

Causes for a Leaking Air Conditioner: 

  • A Malfunctioning Thermostat 
  • A Frozen Evaporator Coil 
  • A Clogged Condensate Drain 
  • An Old or Damaged Condensate Drain Pan 
  • Low Refrigerant Levels 
  • A “Sweating” Condenser

Troubleshoot: A Malfunctioning Thermostat 

The thermostat, which is essentially the command center of your HVAC system, controls the temperature of the evaporator coils. If it starts to falter, a chain of malfunctions, including water leakage from the AC, can occur. To start troubleshooting, inspect the thermostat. If it isn’t responding accurately, it might require a battery change (if this applies to your particular thermostat model) or professional attention for potential wiring issues. 

Troubleshoot: A Frozen Evaporator Coil 

Another prime cause of water leakage from an air condition can be attributed to a frozen evaporator coil due to clogged air filters. To resolve this issue, regularly check your HVAC air filters and replace them if necessary. To thaw a frozen coil, try raising the thermostat temperature or if the unit is actually frozen over, you may need to turn the AC off and the fan on to allow it enough time to thaw out. 

Troubleshoot: A Clogged Condensate Drain 

The condensate drain is another component you will want to consider. It is responsible for drawing condensation away from your AC. With that in mind, if it gets clogged, it can cause leakage. We recommend that you avoiding DIY this particular component as it can be complicated to unclog it. In this case, it would be best to leave it to a qualified HVAC technician. 

Troubleshoot: An Old or Damaged Condensate Drain Pan 

A worn-out or damaged drain pan can result in water leaking onto the floor. So, if your condensate drain pan is old it may be time to replace the old pan with a new one. However, please make sure you carefully following the manufacturer’s instructions.  

Troubleshoot: Low Refrigerant Levels 

Low refrigerant levels, leading to frozen evaporator coils, might be causing your AC’s water leakage. Look out for signs like hissing sounds from the AC unit, ice on the evaporator coils, the AC not blowing cold air, and water leakage. To fix this, you’ll need professional help to refill the proper refrigerant safely. When it comes to checking on an AC’s refrigerant levels, it’s best to leave this task to a professional. 

Troubleshoot: A “Sweating” Condenser 

If you think your condenser is leaking water, it’s good to know that an AC unit can actually “sweat,” when warm air interacts with its cool exterior, leading to condensation. While this is normal, if your condenser is “sweating” so much that there is water leaking out in puddles, it would still be wise to call an HVAC professional. 

We prioritize your comfort and safety. If your AC continues to leak water, and you’re unable to discern why, don’t hesitate to reach out to us. Our five-star customer service is just a call away.  

Connect with the Washington Court House Heating & Cooling team today at (740) 281-5312, or schedule an appointment online now by clicking here!

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