An indoor central air conditioning unit may be leaking water due to a buildup of excess condensation on the internal cold evaporator coil, a blocked condensate drainage pipe, a rusted condensate drain pan, a frozen evaporator coil or improper installation. If water is noticed beneath an air conditioning unit, it is important to unplug the unit first before attempting to diagnose the problem.Continue Reading
Most air conditioning units have a dehumidifier built into the design. This dehumidifier works to pull water out of the air by passing it over a chilled evaporator coil in the body of the unit. On a particularly humid day, the dehumidifier pulls more moisture out of the air than normal. The water builds up on the evaporator coil in excessive amounts and could overflow the drainage pipe or leak through the unit's drain pan. If the drainage pipe becomes obstructed by dirt, leaves or insects, the water formed on the evaporation coil can overflow and leak out of the unit.
Ice can also build up on the evaporator coil if the air conditioning unit is not properly ventilated due to a dirty air filter. Once the air filter is changed, the ice melts from the coil and could leak out of the unit. Finally, if the air conditioning unit was installed on a slant, this could cause the water to run off of the drain pan and leak out of the unit.Learn more about Heating & Cooling
A drain pipe for a central air conditioner system is generally found around or behind the location of the unit. The drain pipe is typically made using a PVC pipe that is connected into the wall of the home and is colored in either black or white.Full Answer >
Blocked condensation drain lines often cause excessive amounts of water in an air conditioner drain pan. These lines are designed to funnel excess water from condensation away from the air conditioning system inside the home. If these lines become blocked, the excess water drains into a drain pan.Full Answer >
According to Homestructions, clean air conditioner drain lines by using white vinegar, bleach and water. Using an improvised vacuum cleaner or a mighty pump to clean a condensate drain line is another option.Full Answer >
To replace an evaporator coil in an air conditioner, remove the old coil, insert the new one in place and recharge the coolant. Once the coils have been replaced, test the air conditioner to ensure the repair is sufficient.Full Answer >