The AC drain pan is located in the indoor unit, underneath the evaporator coils, usually on the same side as the air intake. There is a fixed drain pan under the coils and an overflow drain pan below that.
The aircon drain pan sits under the indoor evaporator coil of your air conditioning system. Its job is to catch water that drips down from the condenser coils. This stops water from leaking inside your house and causing damage.
Regardless of the type of air conditioning unit you have in your home – a central unit or an interior room air conditioner – it will have at least one, and often two, drip pans. The primary AC drip pan, as noted above, is installed on the coil itself.
The AC drain line is located inside your home at the indoor HVAC unit. Your split system air conditioner or heat pump system consists of the outdoor condenser unit and the indoor evaporator coil, housed in the air handler or next to the furnace.
In new homes, city codes require drain lines from the air conditioner's condensate line which are often located in the attic to tie in or be plumbed to the home's plumbing system. Typically, those 3/4″ pipes are plumbed into a bathroom sink's drain that is on average 1-1/4″ or 1-1/2″ in diameter.
Flush Condensate Drain Line
The repair cost to have the drain line flushed runs between $75 to $250.
Usually, you'll find the drain line outside near your condenser unit. First, find the access, which is a capped vertical PVC pipe. Look for it on the inside unit near the air handler. Outside, close to the condenser unit, you'll find the runoff, which is also a PVC pipe.
Signs Your AC Drain Line is Clogged
Puddles of Water: When your drain line is clogged, a common sign is standing water around your AC unit. If your condensate pan can't empty because of a clog, then the water will collect outside around the unit or near the indoor unit. This is the most obvious sign of a problem.
You can prevent a clogged AC drain by performing routine cleaning. By pouring a ¼ cup of vinegar into your AC's drain line, you will kill any mold, algae, mildew, and other forms of bacteria or fungi, preventing it from forming a buildup and causing a clog. Repeat this monthly for the best results.
If you have a secondary condensate drain pan, replacing it can be a fairly simple task, but every unit is different. If you have to disconnect anything more than the power to the unit, it's probably best to call in a professional.
Locate the Drain Hole
The position of the drain hole can vary depending on the model and make of your unit. Generally, the drain hole is located at the bottom of the unit, either at the rear or the side. Check your unit's manual for specific information, or look for a small hole or rubber plug.
Over time, this line can become clogged with algae, dirt, dust, and debris. When this happens, the line backs up and overflows from the drain pan, causing the water to leak into your home. You can unclog the drain line by removing the debris with a wet/dry vac.
The Cost of AC Drain Pan Replacement
On average, homeowners can expect to pay about $30 to $150 for the actual drain pan, with additional costs for labor ranging from $75 to $150. In total, the cost, including installation, ranges from $100 to $300.
Call Service Champions for Emergency AC Repair
We provide residential AC repair in San Jose, Sacramento, and other parts of Northern California. Call 833-600-0991 or schedule your visit online whether you need a condensate drain line unclogged, an AC thermostat repair, or an air conditioner replaced.
All other AC systems have a drain, called a condensate line. One of the primary cooling methods by an AC system is to remove heat from the air through the heat held in the water vapor. Removing the heat in the water vapor causes the water to cool and condense, forming on the evaporator coil.
Turn off your AC and remove the drain line from underneath by unscrewing the screws on its base. Then attach a hose to it and run water through it for several minutes or until all of the water comes out clean. This will cause water pressure in your drains to increase and push out any debris lodged inside them.
It's completely normal for your AC to drain 5-20 gallons of water outside of your home (via the condensate drain). It's NOT normal for your AC to drain any amount of water inside your home (around your indoor AC unit).
In conclusion, a clogged AC drain line can cause several problems, including water damage, reduced cooling performance, and mold growth. Regular maintenance and cleaning of the air conditioning unit\'s drain line can prevent clogs and ensure the unit runs efficiently.
How do I find my AC drain line? Your AC has a condensate drain line running from the indoor to the outdoor unit. You'll find the end of the drain line somewhere near the outdoor unit (usually a copper or white PVC pipe). As for the access point, look for a vertical pipe with a cap near the indoor unit.
AC is Producing Warm Air
One of the surefire signs of a clogged refrigerant line is if you notice the AC producing warm air when you expect cold air. The warm air is caused by a problem with the proper circulation of the refrigerant fluid, which is instrumental in cooling the air.