When the warm air passes over the cold coils it condenses the moisture vapor into water.
Ac unit attic dripping water.
Water that is sucked out of the air can remain on the evaporator coils too long and freeze over.
When refrigerant levels are low your ac unit cannot remove the humidity from the air inside properly.
If water is dripping from your ceiling and your furnace and or air handler is located in the attic the most likely cause is a clogged condensate drain line.
A refrigerant leak causes ac vents to leak water in almost the same way a dirty air filter does.
In that case you ll need to unclog it.
The following tips can be used for reducing the chances of water damages.
The evaporator coil is frozen a frozen evaporator coil can lead to dripping water that will leave telltale signs of moisture in your drain pan.
In a functional hvac system the condensate pump automatically turns on when it comes into contact with water.
Ensure that the central ac system is installed using a secondary drain line more so if the unit is in the attic.
There are multiple unclogging methods like using a wet dry vac on the condensate line.
Some air conditioner condensers are located in closets or utility rooms.
A clogged condensate drain line is the most common cause of water leaking from your ac into your home.
Ensure ac unit is installed with a safety pan to catch overflow.
Luckily it is usually easy to clear out a clog.
This water travels down a small pipe where it ends up in the drip pan.
It is code in many states to have a secondary drain pan and secondary drain pan safety switch installed on all attic air handlers and furnaces.
Small amounts of water in the ac drip pan is perfectly normal.
A drip pan is installed under the condenser unit to catch excessive drips or leaks.
The secondary drain pan safety switch cuts off the air conditioner if the water level gets too high in the secondary drain pan so it does not cause water damage to your home.
A clog in the drain line of an attic ac unit is a homeowner s worst nightmare.
You come home from a long day at work to discover that your air conditioner isn t working properly you inspect your a c unit and find that the drain pan your unit sits in is completely full of water.
Over time algae can grow inside of this drain line causing backups or clogs.
If you re dealing with low refrigerant levels this often indicates a refrigerant leak somewhere in the system.
Locate your condenser which is usually in the attic.
It can potentially cause extensive and expensive water damage.
Have drain pan shutoff switch installed and equip it with a float.
Also it is possible for dirt or debris to become lodged inside.
If you find water in the drip pan clean or replace the condensation line.
If the drain line gets clogged with dust dirt sludge or mold that water backs up into your home.
A powerful wet dry vac and proper hose attachment can take care of most jobs.