How to unclog an ac drain line step 1 power off the air conditioning unit.
Ac condensate drain line clogged.
This line expels the water your air conditioner pulls from your home s air to dehumidify it.
One of the most common reasons for an ac to stop working is a clogged drain line.
Gain access to the ac drain line by removing the system s access cap or unscrewing the pvc pipe.
You should always turn off your hvac before you clean it.
Every central ac has a condensate drain line that runs from the indoor air handler to outside your home.
Use a wet dry vacuum.
One of the first things the technician will do is locate the drain pain and check for.
When the drain line backs up it can trigger a sensor that turns off the hvac system until the line is cleared.
To find your condensate drain line.
Step 2 check the drain pan.
Similar to standing water if the condensate pan is full time and time again it could point to a problem.
Turn off the power to your hvac unit.
Locate where the drain line exits your house and make sure it isn t clogged by an insect nest or something obvious.
Here s what you do.
If that doesn t solve the problem locate the drain line access point near your indoor air.
You ll need to know the location of both your condensate drain line runoff and access to clear the clog.
Push the stiff thin brush into the end of the drain line.
Standing water is the most obvious sign there is something wrong with your air conditioner.
When your hvac services professional arrives to check your clogged ac.
Step 3 unclog the drain line.
Most ac drain lines are located outside near the condenser unit.
The purpose of an air conditioner s drain line is to remove condensation that develops with the use of the ac unit s evaporator coils.
This might clear any clogs located near.
4 signs your air conditioning drain line is blocked 1.