How to wash the internal block of split-system

Choice of cleaners for split-systems

Nowadays many people install in their houses and apartments modern split-systems. For the proper operation of such equipment, it is necessary to regularly carry out its cleaning. From this article you can learn about what detergents should be used for this purpose.

Pros and cons of cleaning with and without means

To the advantages of using special means should be referred the following moments:

  • ease of use;
  • high efficiency of surface cleaning even in hard-to-reach places;
  • After cleaning unpleasant smells disappear;
  • One product can act as cleaner and disinfectant.

Disadvantages of special cleaning products:

The advantages of the method of cleaning the air conditioner without the use of special detergents:

Disadvantages of the method of air conditioner cleaning without using special means:

Signs of a dirty air conditioner

Contamination, when accumulated, impairs the performance and quality of the air conditioner. And most importantly, polluted air affects your health. There are mold, fungus, dust mites, and entire families of different bacteria in the air we breathe. Hence allergies, asthma, various dermatitis and other skin diseases. In order to avoid such situation in your apartment you need to lightly clean split-systems: from one to three times a week. depending on the intensity of using the device. There are several obvious indicators that your air conditioner is contaminated. What you need to pay attention to?

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  • If you have smelled something unpleasant right after start-up of split-system, you should know: this is the most obvious sign of contamination. It is possible that there is some dirt on the grill of the heater or there are problems with drainage.
  • If the consumption of electricity has changed in the higher side, and the power in the lower. it’s time to open the air conditioner and check its cleanliness inside.
  • Peculiar hum and crackling while operating split-system can be a sign of filter or turbine clogging. The knocking can come from the external case, if it is clogged itself. In this case, the fan blades will not be able to scroll normally and will hit the walls of the case or another object.
  • Condensate leakage is another indicator of air conditioner contamination by dust and dirt.
  • “Squelching” and “gurgling” appear when the drainage is not working properly or the refrigerant is lost.

After you notice any of these signs of deterioration in the system, you can either call professionals to clean it, or do it yourself. What to do and how to proceed, we are going to figure out.

How to clean air conditioner at home by yourself: step by step instructions for different components

Before you begin cleaning your air conditioner, determine the types of work that need to be done. The following processes are done independently: cleaning the fan, heat exchanger, filters, drainage.

The outdoor unit also needs to be cleaned, but for this work it is better to invite a professional. High-rise works are not safe and require special devices and experience.

To clean the appliances yourself, you will need tools:

  • vacuum cleaner;
  • soft rags;
  • small brush (not too wide and with a medium pile);
  • toothbrush;
  • detergent;
  • soap;
  • a container of warm water.

Then the independent cleaning of the equipment is performed in several stages.

filter cleaning

Cleaning the filters is simple, so everyone will cope with this process, the main thing is to stick to this sequence:

Air Conditioner Filter Cleaner

The air conditioner is cleaned in several stages

How the heat exchanger is cleaned

The heat exchanger affects the quality of cooling and heating the room, so the procedure for cleaning it should not be ignored.

    To begin with open the indoor unit.

It’s also important to clean a dirty air conditioner heat exchanger

It is best to clean the heat exchanger with a soft brush

Wipe the heat exchanger grid with a rag

How the unit is cleaned externally

Also, the external unit of the device needs constant cleaning, although it gets dirty much less than the internal one, so you should rid it of dust once every 6 months.

For this procedure a powerful vacuum cleaner is used, which is able to pull all the dust from the external filters and heat exchanger radiator, as well as a soft brush:

    Remove the garbage. The brush is for coarse debris, and the vacuum cleaner is for fine debris.

The outside unit is washed under the water jet

Wash the unit with water and a soft brush

If the external unit is within reach for its maintenance, use a compressor. A hose with a nozzle is pushed into the housing and the valve is opened. In this way you remove the dirt behind the grill of the air conditioner.

How to clean the fan

The fan is located inside the unit, so to see its blades, you need to open the cover. Dust accumulation on the fan does not allow it to work properly. You can remove the plaque in this way:

    Turn the equipment on and operate it for a while in any mode.

Let the air conditioner run for a while, then turn it off and open it

To see the fan of an air conditioner indoor unit remove its cover

Clean the fan of the indoor unit with water and a brush

The fan cleaning procedure must be carried out carefully and thoroughly so as not to damage the blades.

Cleaning the fan from dust should be done carefully and carefully so as not to damage parts

Cleaning the drain

The drain of the unit is cleaned with an antibacterial treatment. This process includes maintenance of all parts of the equipment. If you have a steam generator, this procedure can be done much faster.

    First you need to find the entrance to the drainage system of the air conditioner.

The entrance to the drainage system of the air conditioner is on the side under the cover

Cleaning the drainage system is done with steam

Flushing the drain outlet tube can be done with a spray gun

Signs of the need for maintenance

There is a large flow of air through the unit, bringing with it dust and steam saturated with grease from cooking. Debris and moisture accumulate on the inside surface and create conditions for mold. Mites appear if there is a large accumulation of dust. Dust is able to cause allergy, provoke asthma attack.

Sediments influence the air quality and operation of split-system. Deterioration is clearly visible. The only remedy is preventive inspection of the indoor unit at least once a week. Disassemble the outdoor unit at least once a year. In order to understand how often you should clean air conditioner in the apartment, it is necessary to study the instruction. It has all the information about what maintenance is required, and when it should be done.

Signs of a dirty appliance

  • Unpleasant odors that only appear after the appliance is started. If you didn’t feel them a few minutes before you started, they are probably caused by deposits that have built up inside.
  • Reduced air flow. thick deposits are most likely blocking airflow.
  • Increased energy consumption. dust and grease buildup may be interfering with engine operation.
  • Crackling and a constant humming noise. these are caused by a clogged engine or filter. One of the causes is fouling of the fan blades.
  • Leaks and a characteristic squelch appear because of the ducts clogging or incorrect operation of the device.

Why and how often you need cleaning?

Every appliance needs a care, the same rule is true for split-systems. If the appliance is not cleaned on time from the dirt that has accumulated in it, you can count on the fact that the unit will not only cool the air, but also pollute it. Signs to begin cleaning the climate appliance are as follows:

  • Unpleasant odor spreading;
  • Bad efficiency of functioning;
  • failure to maintain the set temperature mode;
  • separation of liquid from the unit inside the unit;
  • Noise and sounds not typical for air conditioner.

If the user of this type of equipment has noticed at least one of the above mentioned manifestations of pollution, it is worth to immediately. According to the professionals it is not necessary to bring the split-system to the critical condition, because it will only aggravate the problem. It is recommended to clean the indoor and outdoor units once every 6 months. To increase the efficiency of the procedure it can be done in autumn and spring. Hygienic cleaning should be performed once in 7 days with the help of special products.

Reasons to begin cleaning of indoor and outdoor blocks of air conditioner can be the increase of its power consumption as well as the leakage of condensate.

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Common signs of the need for drain cleaning

The following signs are true for any type of air conditioner:

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  • If the refrigerant rate decreases, the evaporator temperature in the system decreases, as a result of which an ice crust is formed on it. In this case, the condensate removal path from the system to the drain pan will be blocked, and the accumulated moisture will simply drip onto the room floor. The system also reacts to a strong accumulation of dirt and dust in the filter elements and on the evaporator;
  • if split-system is not equipped with automatic pressure control sensor, when outside temperature decreases, there can occur pressure drop in the cooling system, which will influence evaporator temperature and it will also drop, even if coolant level is normal. The consequences of the evaporator temperature drop are described in the previous example;
  • The water in the drain pipe can freeze during the winter when the appliance is in cooling mode. Negative temperatures outside cause condensate to freeze inside the tube, through which it should go out. In this case it is necessary to clean the drainage of split system, previously disassembled elements of drainage in order to warm them up and remove accumulated garbage and remnants of ice.

Signs of the necessity to clean the system in conditioners with gravity drainage

In such units the moisture accumulated on the evaporator fins drops in the sump and then is drained out through the drain hose. The following causes of clogging are characteristic of this type of equipment:

  • When installing the equipment, installers bent the drainage pipe in such a way that a water plug is formed in it, preventing unpleasant smells from passing through the drainage system into the room. This seemingly benign improvement often becomes the cause of poor water flow through the tube, stagnation in the zigzag elbow of water and dirt, as a consequence. from the device begins to drip into the room;
  • infrequent maintenance of the system leads to dirt accumulation and clogging of the liquid drain hole in the sump. Liquid is not removed and starts dripping into the room;
  • often the cause of dripping is mechanical damage to the drip tray or the drain hose. Usually such a problem occurs due to poor-quality material used for the drainage tube, which over time can crack, or poor connection of individual parts of the drainage hose;
  • Improper assembly of the appliance. In this case, the drain tube may be located above the level of the hole in the accumulator and, accordingly, the liquid is not removed, but leaks inside the apartment.

Signs of the need to clean the system in equipment with a drain pump

In such systems the condensate is removed from the system by a drain pump. Causes of clogging and the need for equipment maintenance in such systems can be as follows:

  • Dirt accumulates in the float chamber, causing the float movement to become obstructed or completely blocked. In this case the drain pump stops turning on and the condensate stops draining;
  • A similar problem occurs when the proximity switch or float switch fails;
  • pump breakage itself. Even presence of a habitual sound does not mean that this unit is in perfect working order. As a result, the liquid is not removed from the system and starts leaking into the room;
  • blockage of the air pipe which leads to the stoppage of the pump operation;
  • oxidation of the contacts on the sump pump power supply terminals causes the pump to malfunction and stall completely.

What does cleaning the air conditioner do

Cleaning the air conditioner removes grease, dirt, and dust from surfaces of parts which serve as a breeding ground for pathogenic bacteria, fungus spores, and mold growth.

Removing these contaminants prevents premature wear and tear of the appliance parts, but most importantly, after cleaning and changing filters, dangerous microorganisms do not get into human lungs.

What is the risk of its absence

Prolonged lack of maintenance will have the following consequences

  • Contamination hinders normal operation of the air conditioner, and as a result the load on the internal working unit increases, leading to its premature failure;
  • the outdoor unit is also exposed to contamination by larger particles coming into the system from the street (down and seeds of trees). This causes the refrigerant in the heat exchanger to be inefficiently cooled and to lose capacity;
  • Air in the room is not cleaned, but on the contrary, is saturated with pathogenic microorganisms, and as the result people living in an air conditioned room, risk to be infected with different illnesses.

Cleaning the filter

The procedure begins with removing the lid of the device. It is picked up by hand and pulled up as far as it will go. Underneath it there are filters, which are a honeycomb plate with a curved shape. After they are removed from the enclosure, they are inspected to determine the degree of contamination. Usually it is enough to rinse them with warm water.

If it is very dirty, the filters are soaked in a soapy solution for 20-30 minutes. Afterwards, remove the layer of dirt from their surface and rinse them in clean running water. Clean filters are wiped with a dry soft cloth and left to dry in the air until completely dry.

filters are not to be cleaned. They are just periodically replaced.

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