Do-it-yourself air conditioner drainage system repair

In detail: do-it-yourself repair of the air conditioner drainage system from a real master for the site my.housecope.com.

How to clean the air conditioner drain pipe

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Many owners of split systems have faced such a problem as air conditioner leakage. Water usually drips from the indoor unit. It's good if it just leaked out onto the floor, and did not flood you with expensive furniture or appliances. Another nuisance that can occur due to condensation leaks is a short circuit, if water gets on the outlet or a switched on household appliance. Where does it come from? Most likely, your air conditioner drainage system is dirty. The water cannot flow out through the tube and therefore flows inward into the apartment. In this article, we will cover in detail the question of how to clean the drain pipe of the air conditioner and the entire drainage system.

Most often, the problem occurs due to the fault of the owner of the air conditioner. After all, any equipment needs periodic cleaning and high-quality service, which cannot be saved on. If these measures are neglected, then you can get the above problem.Image - Do-it-yourself air conditioner drainage system repair

Most often, the drain pan of the air conditioner is clogged. The condensate that flows down the sump carries all the dirt it collects to the drain, the diameter of which is usually very small (about 1 cm), naturally, the drain after some time gets clogged with dirt, and the sump fills with water. And, since the water has nowhere to flow out, it begins to drip from the indoor unit of the air conditioner onto the floor. What is the way out of this situation? The answer is to regularly clean the drainage system and in particular to clean the drain tube. Let's figure out how to clean the air conditioner drain pipe with our own hands.

Video (click to play).

There are other reasons why condensation can flow inside the room and not outside. These reasons are typical for split systems of any type:

  1. If the amount of refrigerant in the system decreases, then the temperature of the evaporator also decreases and ice may freeze on it. Then the water will not be able to enter the sump, but will drain onto the fan and from it onto the floor. Also, this problem can arise not only due to a lack of freon, but also when the evaporator or filters are heavily soiled.
  2. If your split system does not have a pressure regulator, then when the outside temperature drops, the pressure in the system may drop. The temperature in the evaporator will decrease accordingly. And this can happen even with a sufficient amount of freon. Typically, a pressure regulator is an integral part of all year-round air conditioners.
  3. The most commonplace reason is the freezing of the outlet of the drainage tube. This can happen if the air conditioner is used for cooling during the winter. In this case, the condensate must be discharged to the outside. If the outside temperature drops below zero, the tube opening will certainly freeze, blocking the water outlet. However, it must be remembered that before cleaning the drain pipe, it is necessary to flush the drain pan and other elements of the air conditioner drainage system.

Image - Do-it-yourself air conditioner drainage system repair

The split system with gravity drainage of condensate functions as follows. The liquid collects on the fins of the evaporator and then flows into the tray. Then she goes through the pipeline to the street, or to the bathroom. If you are the owner of this type of split system, then the reasons for the leakage of the air conditioner may be as follows:
  1. The drain pipe does not slope, i.e. the hole where the water comes in is higher or at the same level as the hole for the water drain.Consequently, the liquid is retained in the tube and can flow in the opposite direction. The way out is to clean the drainage tube yourself.
  2. Poor quality material. If the drainage compartment is made of poor quality material, then the condensate drainage pipe may burst or crack over time. If the drainage consists of several interconnected tubes, then the seams connecting them to each other could disperse.
  3. The use of pseudosiphons. It happens that installers bend a sewer pipe in a zigzag pattern. This is done in order to install a water seal and sewer odors could not penetrate into the apartment due to the constant level of water in the pipe. However, this approach makes it difficult to drain condensate from the drain tube. Therefore, it is best not to use this method with siphons.
  4. Blockage in the drainage system. Both the drain tube and the tray itself or the condensate drain hole can become clogged.

If you have a split system with a drainage pump, i.e. system without condensate drainage to the street, then the reasons for condensate leakage may be as follows:

  • Breakdown of the drain pump. The pump may burn out or start operating at a lower power. Even the presence of a sound characteristic of operation does not mean that the pump is in working order. It must be removed and checked.

Image - Do-it-yourself air conditioner drainage system repair

  • Blockage in the float chamber. If a lot of dirt has accumulated, then the float in the float chamber may become fixed, due to which the pump will stop working and the drainage of water will stop.
  • Breakage of the proximity or float sensor.
  • Clamping the air outlet tube.
  • Poor contact at the pump power terminals.

The drainage system of the air conditioner is a place with high humidity, which means that it is an ideal place for the reproduction of microorganisms. Moreover, all the dirt collected by the air conditioner from the air is concentrated here. Mold and bacteria that are dangerous to humans often develop in the drain. That is why it is necessary to approach the cleaning of the drainage system with all responsibility.

You can of course use folk remedies that will tell you how to clean the drain pipe of the air conditioner. However, they will lead to quick but short-lived results. For example, some advisors recommend blowing or poking metal wire into the pipe. But what will we get as a result? The tube, of course, will break through, water will drain through it, but all the dirt will remain inside the drain pan. Thus, you will get the result very quickly, but the problem will return sooner than you are finished enjoying the quick result. Therefore, it is best to apply professional secrets and solve the problem radically. Just overhaul your air conditioner drainage system.

First, you have to disassemble the air conditioner. Carefully remove the cover from the air conditioner and remove the black filters. Then, bend back the lower blade, through which the air is flowing, and remove the two plugs from under it. Unscrew the screws. During the execution of all manipulations, the device must be turned off.

Remove the drip tray that collects condensate from the evaporator. In order to do this, you first need to pull out the black cable from the infrared sensor fixed in the foam, and then unscrew the screws holding the blade motors. Everything, you can pull out the pallet. Pull it slightly and downward. There is a drain hose behind the drain hole and must be disconnected. After that, you will finally have access to the drain connection. We connect the hose from the pump to the drainage pipe and purge it. The main thing is that the diameter of the hose and the branch pipe match. In order to thoroughly rinse and disinfect the branch pipe and the entire drainage system of the air conditioner, pump chlorhexidine inside using a pump. This drug is often used for disinfection in hospitals.We will need about four bottles of the drug. While the liquid is acting, we rinse the drain pan of the evaporator itself and its other parts, on which dirt and dust has settled.

After fifteen minutes (this is how long it takes for the drug to work), you need to connect a vacuum cleaner to the hose, which will suck out all the dirt that remains in the drainage system. The second option involves turning on the vacuum cleaner in blowing mode. Thus, you will achieve an effective disposal of the drainage from the remaining dirt. After that, you can pour one and a half liters of water into the drainage system for testing. If the water flows freely through the drain hole, then congratulations, you managed to clean the drain tube yourself. If there are any difficulties when water comes out of the tube, then you can repeat the last procedure several more times.

1. Remove the case of the front panel of the air conditioner

Image - Do-it-yourself air conditioner drainage system repair

2. Removing the condensate collecting pan from the evaporator

3. Unscrew the screw that holds the blade motor.

4. Carefully remove the pallet

5. Disconnect the drain hose

6. The drain tube is now accessible for cleaning.

7. Connect the hose of the vacuum cleaner and blow out additionally using cleaning agents

Climate technology plays an important role in creating a comfortable home environment. Repair of air conditioners in case of breakdown is easy to do with your own hands, since these devices are quite simple to operate and work.

In household ventilation systems, a decrease in work efficiency is immediately felt. If some signals about the impending breakdown of home air conditioners may not be immediately noticed, then the deterioration in performance is noticeable immediately (especially in the hot season). The main types of air conditioner malfunction:

Separately, it must be said about the breakdown of floor-standing household air conditioners. Correct installation of climatic technology plays a very important role. If the installation was not carried out on a flat surface, then the drains will clog first, and then the radiator and engine will fail. The air conditioner will hum during operation and accumulate condensate, after which it will be almost impossible to repair it.

Image - Do-it-yourself air conditioner drainage system repair

Photo - the principle of work

Video: how the air conditioner works

The easiest way is to clean and urgently repair the air conditioner radiator at home. Externally, the split-system radiator resembles a very fine mesh, which is located under the front panel of the device. Due to the fact that it is constantly exposed to dusty air, a large amount of debris from the outside accumulates on the mesh, which gets into your home during work. In addition, the equipment also builds up dust during downtime (winter and autumn), which also causes dust to appear on the radiator.

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Photo - purging the filter

To be on your own clean and repair the air conditioner, need to:

  1. Remove the panel from the device. It is attached to threaded connections, they are removed with a screwdriver or wrench (depending on the brand). In some window air conditioners (Mitsubishi, Hitachi or Daikin), the panel is also secured with hidden locks; Image - Do-it-yourself air conditioner drainage system repairPhoto - cleaning the split system
  2. Under it are the first air filters, through which the air flow passes both from the street and from the house. Therefore, you need to remove and soak in warm water and soap for 30 minutes. During this time, fatty deposits and dust will peel off from them, and pathogenic bacteria will also be destroyed;
  3. A rotary fan is located under them. It is produced in the form of a roller and must be cleaned, since it is this part that helps to distill the air. Its maintenance consists in wiping the blades with a damp cloth soaked in soapy water;
  4. Further, you will find yourself in the filters through which the air flow enters from the outer compartments into the inner ones. These parts are cleaned with a roller dipped in water and soap, you can buy a special tool or use a rag wound around a long tube.

Most often, warranty repair does not imply cleaning the radiators of air conditioners, so you will have to carry out the work yourself. It is advisable to repeat the process every six months for the best effect.

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Photo - professional cleaning products

Instructions on how to clean the heat exchanger of a Panasonic (Panasonic), Samsung (Samsung), VAO and others air conditioner:

  1. It is necessary to remove the front panel and remove all parts of the external compartment. You need to get into the internal one, the heat exchanger is located exactly there;
  2. There are several ways to clean. For example, many even professional craftsmen simply blow through the radiator with a vacuum cleaner. If you do not have this device, then you can walk over it with a soft brush;
  3. To test its performance, dip the part in a bowl of soapy water. If bubbles come from somewhere, then the radiator needs to be soldered.

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Photo - place of leak

With rare use of the conditioner, or, on the contrary, after very intensive use, many owners notice that water drips from under the front panel. The problem is clogged drainage pipes... What to do:

  1. Repair of air conditioner hoses is carried out only in the warm season, in extreme cases, at a positive temperature, otherwise it will be impractical;
  2. If the problem was noticed after the winter season, then first you need to carefully warm up the branch with warm water and a rag - probably an ice plug has formed in the pipe;
  3. If the malfunction was discovered in the middle of the working season, then the pipe must be blown out. For this, special compressors can be used, which are output to the internal outlet of the tube or liquid. Read the instructions first to see if cleaning solutions can be used in your conditioner.

But the most dangerous problem that requires urgent repair and can affect the operation of the air conditioning compressor or its clutch is refrigerant leakage. The main insidiousness of a malfunction is that it is very difficult to detect. Even not all professional workshops provide such a service. Leakage signs:

  1. Noise during operation;
  2. Decreased cooling efficiency;
  3. Sudden changes in temperature.

Before starting the repair, you need to find the place of the leak. There are several ways to do this. The easiest is, again, using a soapy solution. It is necessary to lubricate the pipes of the refrigeration circuit with a special soap (you can also use the usual 1: 1 solution, but its effectiveness is lower), and watch where bubbles appear.

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Photo - measurement and elimination of refrigerant leaks

In some brands, a liquid is added to freon, which glows under ultraviolet rays. Of course, you will need to arm yourself with a UV lamp, but this is the fastest and most efficient option. It will not work to repair high and low pressure pipes on your own, moreover, if the problem is not detected in time, the repair will be more expensive than the cost of the equipment. Therefore, we recommend that you immediately contact the service center with this leak.

Very interesting to read:

The most common breakdown of split systems that our compatriots face is leakage. It is quite unpleasant when water drips from the indoor unit onto the equipment and pieces of furniture. It is much worse if the leakage of the air conditioner leads to a short circuit in the electrical wiring and the failure of expensive household appliances. The main reason for the "cry" of climate technology, as a rule, is a clogged drainage system. How to clean the drainage pipe of the split system on your own will be described in this article.

As mentioned above, the air conditioner is leaking, most likely due to a clogged drainage system. During the operation of the split system, condensate inevitably forms on the heat exchanger of the evaporating unit, which flows into a special sump, and from there, through a drain pipe, it is removed outside the room.

But during the operation of the air conditioner, dust, particles of pet hair and other contaminants that are not retained by the filter adhere to the wet heat exchanger. Contaminants along with condensate fall into the sump, and from it into the drain pipe. The problem is that the diameter of the drainage tube is only about 10 mm.Dust and dirt from the air conditioner very simply clog the drain holes, condensation has nowhere to go and it simply flows out of the pan.