5 Reasons Why Your Air Conditioner Leaks Water

May 2, 2015

When your air conditioner runs for long periods of time, like during the summer, you can expect to see small amounts of condensation dripping from your system. But, large pools of water leaking from your AC unit are often a sign that something with your air conditioner is wrong – a malfunctioning part, broken condensor, or a variety of other reasons – leaving you to ask yourself, “Why is my air conditioner leaking water?”

Why Is My AC Leaking Water?

Your air conditioner may be leaking for several different reasons and is not always caused by the same problem. If you notice your AC unit leaking large pools of water, contact an HVAC professional who specializes in air conditioning repair. Your AC unit may be leaking due to:

  1. Improper Installation – Your air conditioner must be properly installed in order for it to function properly and run efficiently, just like any other part of your HVAC system. When your air conditioner is improperly installed it may not be level, causing too much air pressure to build up inside the uni. Check to make sure the outdoor air conditioning unit is level. If not, continue to troubleshoot until you find the root cause of the leaking water.
  2. Poor Seals/Excess Air – While operating, your air conditioner works to pressurize a refrigerant, causing the air to cool and then dispersing it throughout your home. If your air conditioner is poorly sealed, excess warm air may enter the unit and condense when it contacts cooler air, causing water to leak and moisture pools to collect below the unit.
  3. Broken Condenser – Leaking water may also be a telltale sign of a broken condenser pump – a critical part in your air conditioning system. To test if the condenser is the source of your leaking water, pour water into the condenser pan and check to see if it properly pumps the new water. If it does, check the electrical connections to the condenser. If you still cannot answer the question of why your air conditioner is leaking water, call your local HVAC contractor.
  4. Clogged Drain Line – If the drain line inside your air conditioner is clogged, it could cause water to leak from your air conditioner in addition to some serious water damage inside your home. To prevent costly repairs, you can try to remove any clogged materials (dirt, debris, or a float – commonly found in modern air conditioners) using a wet vacuum. However, we suggest contacting an HVAC company to solve the issue for you.
  5. Too Cold – Depending on your personal preferences, you may like to turn your air conditioning system on a few days or weeks before your neighbors. However, if it’s too cold outdoors for your AC unit to operate (usually anywhere below 60 degrees Fahrenheit), the condensation from your air conditioner will not evaporate and pools of water will collect under your unit. Check back to see if the water evaporated once temperatures warm up a bit. If not, there could be a more serious issue with your air conditioner causing it to leak water.

Air Conditioner Repair in Southwestern Ohio

Rick’s Heating & Cooling is a family-owned and operated heating and cooling contractor servicing southwestern Ohio since 1986. We service Warren County, Butler County, Hamilton County, Clermont County, and Clinton County.

If you notice your air conditioner leaking water, be sure to give us a call at 513-899-6005! We can diagnose and repair your AC unit and restore the comfort to your home. Contact us today to schedule service!