How do you clean an AC drain line with an air compressor?

Asked By: Garret Sanles | Last Updated: 25th January, 2020
Category: home and garden home appliances
4/5 (1,274 Views . 38 Votes)
How to Unclog an AC Drain Line with an Air Compressor
  1. Turn off the HVAC system.
  2. Locate the system's cleaning port.
  3. Remove cleaning port cap to access the clog.
  4. Removing Manually: Depending on the extent of the blockage, you can try to remove the clog manually.

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In respect to this, how do you clean an air conditioner condensate line?

Here's a step-by-step guide on how to clean your drain line with vinegar and keep everything operating at peak performance.

  1. Turn off your air conditioner.
  2. Locate your condensate drain line.
  3. Identify the access point on the drain line.
  4. Flush with distilled vinegar.
  5. Let the solution sit for 30 minutes.
  6. Repeat each month.

Subsequently, question is, what happens if your AC drain line is clogged? Removing a Blockage From a Clogged AC Condensate Drain Line. One of the most common reasons for an AC to stop working is a clogged drain line. When the drain line backs up it can trigger a sensor that turns off the HVAC system until the line is cleared.

Also asked, can you use an air compressor to unclog a drain?

Most drain and pipe clogs result from a combination of several small items rather than one large item. If your sink is clogged, an air compressor is a useful tool to clear the problem. The air compressor plugs into a standard 110-volt outlet and applies pressure that can be used to remove the clog.

Is bleach or vinegar better for AC drain line?

Preventative Maintenance Pouring bleach into the drain when the unit is not operating can leave residual bleach, which will damage the drain pan and line. Using vinegar for preventative maintenance throughout the year will keep your drain clean and clear and will not damage your line.

33 Related Question Answers Found

Where do I run my AC condensate drain line?

Every central air conditioner has a condensate drain line that runs from the indoor air handler to the outside of the home. Look for a white PVC pipe that's located near your outdoor unit.

Why is my AC overflow dripping?

A clogged condensate drain pipe can make your AC system's drain pan overflow. This is probably the most frequent cause of water leakage from a central AC system, bringing many service calls to HVAC professionals as summer temperatures rise. Drain lines can become clogged with dirt, rust, algae and other debris.

How do I stop my AC drain from clogging?

Use Bleach or Vinegar
You can help your air conditioner between regular cleanings by pouring a cup of bleach down the opening of the drain inside the unit. This should be performed every three to six months to clean out any harmful material that may be building up and kill algae, mold, or other growths.

Can't find my AC drain line?

This can be done at your breaker and thermostat. If your air handler is indoors, find the condensate pan, usually located under the unit. If there is standing water in the drain pan, you most likely have a clogged condensate line. Use a shop vacuum to remove this moisture and any debris that may be involved.

Should AC drain line be capped?


If the condensate vent is capped, you'll begin to hear a popping suction sound at the sink drain termination. A certain amount of air loss at that vent is also acceptable. Ken, I think you may be thinking of the over flow catch pan drain line which indeed should terminate to the exterior over a window.

Where is the drain pan on my AC?

Central Air Conditioner
The unit's evaporator coils are located here, and directly underneath those coils is the drain pan. The moisture that the unit removes from the humid interior air condenses on the evaporator coils and drips into the pan. A pipe normally runs from this pan, leading downward to a floor drain.

What do plumbers use to unclog drains?

Some clogs can be fixed by pouring baking soda down the drain, followed by vinegar, and letting the mixture sit for a few hours before flushing. Buildup of grease can be removed using baking soda and salt, followed by boiling water. You can use a plunger to take care of some blockages.

How do you unclog a drain with air pressure?

How to Unclog a Drain With Air Pressure
  1. Check your fixture's plumbing trap.
  2. Run the water slowly so those that the pipe and drain begins to fill up.
  3. Move the rubber fitting on the bottom of the water ram over the drain opening and begin pumping the water ram.
  4. Pull the trigger toward you once you reach 20 psi.

How do you purge water lines in your home?

To drain the plumbing system, proceed as follows:
  1. Shut off the main water valve at the water meter.
  2. Starting at the top floor, open all the sink faucets.
  3. Go to the basement or the lowest level in your home, then open the faucet in your laundry tub or lowest sink, and let all the water from the above floors drain out.

How do you clean sediment out of water pipes?


Turn on the cold water at the plugged faucet and let it run for 40 minutes. Check the faucet and the water heater for leaks during this time. The cold water will be forced into the hot pipes at high pressure and flush the sediments out through the garden hose. Turn off the water after 40 minutes.

What can I use an air compressor for?

Air compressors pump high-pressure air to fill gas cylinders, to supply divers, to help in powering pneumatic HVAC control systems, and to power pneumatic tools. They can also be used for household applications and there are special air compressors for inflating tires.

How do you use CLR Power Plumber?

Directions for using CLR POWER PLUMBER without Plunger Kit Blocked Sinks and Tubs
  1. Fill sink with enough water to submerge can's cap.
  2. Block overflow with damp rag or sponge and hold firmly.
  3. Place can's cap over drain opening and press firmly for one second. Repeat if necessary.

How do you unclog a sewer line with chemicals?

How to Unclog a Sewer Line with Chemicals
  1. Lower down the pressure. The first thing you need to do is to find a way to release the pressure.
  2. Pour down the chemicals. If you have released the pressure, that's just the first step in unclogging the sewer line completely.
  3. Copper sulfate.
  4. Dichlobenil.
  5. Citrus cleaner.

How do you know if your AC drain line is clogged?

Signs of a Clogged A/C Drain Line
  1. Dripping water. If there's water dripping in or around your A/C, then it's a sign that the drain pipe is backed up.
  2. Full drip pan. Even if you don't see dripping water, check your A/C regularly for signs of a clogged AC drain pipe.
  3. Mold.
  4. Water damage.

Can you snake an AC drain line?


Take a look at the AC drain pipe and see if you can see the blockage. If you can see the blockage, you can attempt to manually remove it with your hands (wearing protective gloves) or by using a drainage snake. Be sure not to push the blockage further down the drain pipe.

How do you unclog an AC drain in a car?

How to Unclog a Car's Air Conditioning Drain
  1. Park your car on a flat surface with adequate lighting, and engage the emergency brake.
  2. Cut about 1 foot of metal wire and form a hook at one of the ends.
  3. Go underneath the engine and locate the AC drain tube, which is a small rubber hose.
  4. Insert the wire, hook first, into the AC drain tube.

Can bleach damage PVC pipes?

While bleach is a great way to clean and disinfect, it does not dissolve things like hair. However, bleach does remedy algae growth on the inside and outside of PVC pipes. You can pour bleach down the drain to without worrying about the safety of your PVC pipes.