You may notice your air conditioner running but not cooling before things worsen, but here are the two key indicators of a clogged AC drain line:
- Your air conditioner is not turning on.
- Water is leaking around your unit (Drain Pan).
The HVAC drain line and Condensate Drain Pan are placed at the base of your unit. When your unit is turned on, condensation forms on the indoor coil and this water drains into the drain pan, causing the leak. Sludge material that builds in the drain pipe frequently causes a blocked drain line. This trash is typically a mix of dirt, hair, dust, algae, and other materials.
When your unit won't start, it's usually because the drain pan has become clogged with condensate water. When the drain pan fills up with water, the float, which is part of the drain pan, raises and therefore shuts down your unit. So, what should you do as soon as you observe symptoms of an AC drain line clog? The first step is to quickly turn off the unit.