Split Ac Full Ice In Indoor And Outdoor Check The Reason || Important Video
What to do if the air conditioner is leaking
Many air-conditioner owners face a situation when water starts to drop from the inside unit. The liquid can flow directly from the case, along the wall on which the equipment is installed or through the blinds together with the air stream. Usually the problem is observed not at once after turning on a split-system, but after 20-40 minutes of work. Volume of water depends on the difference between the set cooling mode and the ambient air temperature. The bigger the difference, the more the air conditioner leaks.
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There may also be buttons “Lock” (locks the settings), “Led” (backlighting of the remote control) and “Clock” (shows the current time), etc. Everything depends on a model of split–system and its capabilities.
Sometimes manufacturers put “Cool”, “Heat” and “Fan” functions in the separate buttons.
Let’s talk about the main malfunctions (firstly, “symptomology” is pointed out, then. genesis of the problem and the ways of its correction):
The conditioner does not provide a proper cooling, masses of ice are falling out. Occasionally a characteristic crackling sound can be heard, even more rarely. the liquid flows out of the indoor unit. Sometimes a characteristic crackling sound can be heard, and more rarely. the liquid drains from the indoor unit. The first possible cause is a clog in the indoor unit. Prolonged use causes elements such as filters, fan and evaporator to become encrusted with dust and dirt, which reduces the heat removal from the evaporator and allows massive ice to freeze. Another variant is a clog in the outer unit. Over time, when the heat exchanger and the ventilation element become dirty (dust, debris, popliteal fluff, etc.), the indoor unit can become clogged with dirt and debris.д.), heat removal from heat exchanger decreases and consequently decreases efficiency of air conditioner operation. As a compensation, the equipment runs the compressor motor at maximum, rarely turning off; the latter causes the ice formation in the indoor unit. In both cases a complete and complicated cleaning of the unit (internal or external) is required. It is more difficult to clean the outside block of powerful and industrial conditioners: it is necessary to wash it with a jet of water from specialized equipment that can supply it under high pressure.
Air conditioner does not produce a sufficient amount of coldness and the compressor does not stop operating; ice or fluid is leaking from the indoor unit. “Classical” reason is a leak of the refrigerant that can escape because of the breach of tightness of the unit or as a result of long-term operation. Every split–system loses up to 7% of refrigerant per year. Due to lack of freon, the efficiency worsens and equipment that tends to keep the set temperature, works in high speed that results in evaporator’s frosting. To fix the problem, you need to check the mains leakage using a high-pressure nitrogen substance. The expert should localize the place of air tightness violation (often it is pipe joints) and restore it. Then it is necessary to change the drying filter, vacuum the air conditioner and charge it with freon.
The equipment is functioning but it produces little cold, the motor stops working occasionally and ice and snow form on the evaporator; when it melts, they begin to run down and when you look at the external blog, you can notice frosting of the thin tube. Similar symptoms are characteristic of a clogged capillary tube. Contamination leads to an increase in the inlet and outlet pressure difference, as a result of which freon begins to boil and give up the cold before the evaporator. There are several ways out: you can blast split–system with pressurized nitrogen (helps with weak blockages), use hydraulic cleaning method (helps with serious blockages) or change the capillary pipe itself. However, the cause could be different: there could be a malfunction of the settings or a defective expansion valve/ERV. Inverter air conditioners provide regulation of refrigerant flow to the evaporator by means of a special thermostatic regulation valve (it can be electronic or mechanical). This ensures that the temperature set by the user is maintained at the lowest possible energy cost. However, if there is a failure, the refrigerant pressure does not correspond to the operating pressure and freon only partially boils in the evaporator, due to which the efficiency is reduced. In order to restore the set temperature values the equipment starts to work in “killing” mode, which leads to freezing of the evaporator of the indoor unit. In order to correct the situation you should adjust split-system or replace the broken TRV/TRV valve.
The internal air conditioning unit is freezing, often accompanied by fallen ice, dripping fluid or a characteristic crackling sound. A faulty control module can be detected, causing a drop in the condensing temperature of the liquid in the evaporator and a build up of ice on the indoor unit. Ice melts and leaks. If the latter, or the produced snow, gets on the fan, the air conditioner can begin to “dump” liquid or ice. When ice accumulates in large quantities, the air blades begin to catch it; it causes unpleasant sound. In order to correct the situation it is necessary to repair or replace the control unit.
Air conditioner blows weakly, which can be accompanied by leaks. Frequent reason. failure of fan that rotates only at low revolutions. Consequence. insufficient heat removal from the evaporator which starts to freeze. Appeared ice melts and as the result the split–system is leaking. Repair or replacement of the indoor unit fan can solve the problem.
Air conditioner freezing, sometimes accompanied by dripping liquid and falling ice; compressor functions, does not turn off. It is possible to speak about evaporator temperature sensor failure. It is responsible for switching off the cooling when the evaporator temperature decreases to a critical level. If the thermal sensor breaks, the control board does not receive the necessary data; the compressor starts to run continuously, and masses of ice are produced in the air conditioner, gradually thawing and allowing the liquid to leak. It is impossible to repair such sensor: the only way out is to replace damaged element with a new one.
Causes of ice formation
The most common cause of indoor unit frostbite is impaired heat transfer due to fouling of individual components:
Insufficient air circulation can also cause freezing, because of the obstacles in front of the conditioner, or in the air intake zones (it often happens when the internal unit is located in the alcove). Air-inlet of the conditioner should be kept clean (in some models it is closed by special filtering net) and in no case it should not be blocked by decorative plates or any other interior elements.
Continuous continuous operation of the compressor will also contribute to the excessive formation of ice. It can be caused by:
- Control board malfunction
- Sticking relay contacts
- Broken evaporator frost sensor
- Lack of freon in the system (can be fixed by topping up)
- Thermostatic expansion valve malfunction
- Capillary tube clogging
- Broken copper tubes of the heat exchanger module
This type of failure can only be repaired by a refrigeration repairman. In no case you should not try to repair yourself as it only make existing problems worse, and the further repair of your air conditioner could be simply impossible.
One more reason. mismatch of your conditioner type to operating conditions. For example, some models of split-systems do not allow exploitation in cold season without special winter adaptation. Pay attention to this fact while exploiting your conditioner.
Formation of ice on copper pipes of turned off air conditioner is a vivid evidence of refrigerant leakage, caused by fracture of pipes or incorrect installation of the system. If you notice such freon leaks in time, you can avoid the unit in emergency mode.
Freezing: how it looks
Here is the photo of Samsung air conditioner, from which the plastic body was removed. It is easily seen that its heat-exchanger is frosting. If you do nothing, it will be completely covered with ice.
And here is another air conditioner, it is also freezing. The easiest way to notice it is to look at the outside unit. The nut and two-way valve on the thin (liquid) pipe are all in frost, even though it’s hot outside. Most likely the internal block of split–system is also covered with ice. In this case it is caused by Freon leakage. On the following photo you can see exactly where freon is leaking.
There is compressor oil all around big pipe nut, so it is a loose connection: fitters made a bad flare on copper pipe or they under tightened the nut. The leakage can be traced to a Freon leak. After liquidation of the leak and freon refilling the conditioner will stop frosting.
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Due to clogged filters, cold air cannot be freely released, resulting in icing. It is necessary to wash the unit before it will work properly. Clean filters regularly. This can even be done with a vacuum cleaner.
Lack of freon
When there is a Freon shortage in the system, the indoor unit is covered with frost. The problem can be solved by calling service technicians.
Improperly installed indoor unit
If it hangs in a recess, behind curtains or other obstacles, it can also cause icing. This is where reinstallation is required.
If there is any moisture left in the system, it can also cause the insides under the cabinet to become covered in ice. Again, this problem can be solved by service personnel.
Causes of ice appearance
In order to understand why the compressor tube on the refrigerator is freezing, it is necessary to understand the processes that occur in the unit.
The operation of the device begins with the compressor compressing the refrigerant, causing it to heat up. Heated substance getting into the radiator. The radiator is cooling to almost room temperature, and a large amount of it begins to condense. Then the liquid and the gas go together into the expander. From the expander to the freezer is a thin tube that can pass only liquids. Nothing can freeze or condense on it.
Then the liquid freon enters the heat exchange tube, which is located in the freezer. Under the influence of the excessive heat of the freezer, the liquid in the suction tube must evaporate. It is at this point that the temperature in the chamber decreases to the temperature set on the control unit. Freon should be escaping from the freezer only in a gaseous state. If the heat exchange is broken, there will be some liquid. Freon flowing back to the compressor begins to cool the warm humid outside air. It turns into a vapor, and because of this, the tube can get foggy and in some cases covered with frost and ice. This is considered normal. And sometimes there can be too much ice.
Causes of excessive ice and frost on the tube can be
- Excessively low freezer temperature;
- Too much ice in the freezing chamber that prevents the refrigerant from collecting the required amount of heat.
How to fix the breakage
If you notice that the refrigerator tube is often covered with frost or, even worse, with a large amount of ice, you can try to fix the problem yourself. There are several ways.
- Defrost the fridge more often.
- Change the temperature in the freezer to a higher one.
- Wrap some foam rubber around the tube, which will protect it from the humid air of the room in which the refrigerator is located.
In some cases you may need to refill the refrigerator with freon.
Nevertheless, having noticed any problems in the work of the refrigerator, it is worth to ask for qualified help of a master. Only he will be able to properly diagnose the problem and with the help of special tools fix it in a short time.
Owners usually notice frosting of the tubes of the outside air conditioner unit after some delay, especially if it is installed under a window of the room. It is detected only with the occurrence of malfunction of the internal part of the device. Because people don’t look in there very often. Frost on the tubes is easier to spot if the unit is located on a balcony. In this case even the appearance of a light layer of frost can be noticed and cause suspicion.
When frosting is not an indicator of malfunction:
- Frost penetration of tubes can occur at switching on the conditioner after a long pause. When a split–system after the autumn-spring rest is put into operation for the first time you can notice some signs of frosting on tubes. After an hour or two, the unit will stabilize and the frost will disappear.
- The light layer of a frost on the outside unit tubes can accompany the absolutely normal operation of the unit, when the condensate changes into a frosty layer and then back again.
But if there is an icy coat on the tubes and taps, and conditioner began to cool a premise worse, it is necessary to try to find the reason. If you look closely, you can see that frosting is occurring in different ways, i.e. ice can be on the thick or thin tube or both at the same time. What it indicates? It is worth to disassemble each option separately.
A/C Indoor unit evaporator coil ice problem solution in Urdu/Hindi
The thick tube (or low-pressure tube) freezes if the cooling process of the refrigerant in the indoor unit is disturbed, when the boiling process continues and at the outlet of the evaporator in the low-pressure tube. The reason for this often lies in unprofessional installation or repair of the equipment and violation of certain rules:
- Refrigerant level disturbed. During installation or routine topping up, the refrigerant charge is greater than necessary, and the excess charge will cause the cooling cycle to break.
- Broken Tube. Usually it is a consequence of illiterate installation, when the installation is entrusted to a non-specialist. If the tube is bent, the freon circulation may be disturbed and it will continue to boil in the suction tube.
- Shortened route. Improper installation location of the indoor unit and violation of the manufacturer’s line length requirement.
These irregularities will show up shortly after installation. If conditioner is working properly before and there were no topping up, then signs of freezing show the troubles in the system. In order to fix the situation you should look closely and find the reason, there can be several of them:
- If cooling of the room considerably decreased and frost is visible in the outdoor unit, it can indicate the fouling of filters of the indoor unit. It is possible to correct such a situation by oneself, washing the filters in a detergent solution and drying them.
- It can also be caused by dust, lint and other small atmospheric debris clogging up the heat exchanger of the outdoor unit. Thorough cleaning will restore the correct operation of the equipment and eliminate the appearance of ice.
- Failure of the fan. If in the previous variants it is possible to solve the problem by yourself, then the replacement of the fan should be done by the expert.
The thin tube (high pressure) can be iced over by an unprofessional installation that does not comply with the installation standards prescribed by the manufacturer, or for other reasons. If the unit operates with an excessive load almost without shutting down and a thin tube is covered with ice, it can indicate a capillary pipe clogging. The clog is removed by a technician by blowing out with compressed nitrogen or flushing with solvent. In more complicated cases you may need to replace it.
This can be caused by a lack of refrigerant, which can occur through natural loss or depressurization. For this purpose, a specialist checks the air tightness and, if found, corrects the problem and tops up the freon.
Appearance of ice coat on both tubes and on heat exchanger of outdoor unit usually occurs when air conditioner works in heating mode. It can be caused by violation of operating standards, or more precisely by using the device at inadmissible external temperatures, or contamination of the external unit, which can be eliminated by cleaning. And also a malfunction of the sensor in the external heat exchanger that should regulate the defrosting process. It can be solved by the replacement of a sensor. Frosting can be promoted also by the breakage of a control board, and repair or replacement of this element can correct the situation.
Why does conditioner freeze and how to solve this problem?
An air conditioner in the modern world is a widespread appliance, thanks to which it is possible to keep the necessary temperature in a premise without any efforts. It is especially useful in summer, when it is very hot outside and you want to create a cool and pleasant atmosphere at home. But while using conditioner quite often different problems appear. Sometimes conditioner simply can not turn on or, for example, makes too much noise. Besides, quite often the owners of such climatic equipment face the fact that external or internal block of the system freezes.
Appearance of frost or layer of frost on any elements of air conditioner can be caused by various reasons. But not all of them indicate that there is a problem with the appliance.
When there is a case of freezing there are no signs of the appliance breakage:
If it is very hot outside and the appliance is operating in intensive cooling mode, a small layer of frost may form on the surface of the evaporator. If you find this sign, there is no need to worry. There is nothing wrong with your appliance.
A small amount of ice may appear while defrosting an outdoor unit when the unit is in heating mode. In this situation there is no need to worry and call a master.
If frost or a layer of ice forms on any part of the indoor unit, it may indicate improper use or other problems. It’s most likely a malfunction of some parts.
When the freezing of the internal unit takes place and how this problem can be solved.
Mechanisms of the unit are heavily contaminated. This is what often leads to the fact that a small layer of ice appears on the evaporator. It leads to the situation when conditioner starts working less effectively, sometimes water drops out of the block. And during the operation one can hear the rattle, which is untypical for normal conditioner functioning. To fix this problem, you need to clean all the filters in the system, as well as the evaporator, fan and the rest of the unit.
Frost formation can also occur because of a refrigerant leak or in the case of a leakage. In such situation the productivity of air conditioner decreases greatly. Evaporator begins to freeze. One of the signs is a continuous operation of the appliance, which tries to reach the temperature set by the user. The problem cannot be solved by yourself. You need to call for service.
Frost can form due to the fact that the temperature sensor is broken. In such a situation it must be replaced.
Capillary tube is sometimes clogged, which also causes ice to appear on the module elements. Most likely you will not be able to clean it yourself, because you need a compressor which creates a lot of pressure.
The problem may be caused by a loose fitting or a bent copper tube. You need to replace the element or repair the part that has been damaged.
Probably the control module is defective. If this is the cause, you need to replace the board or repair it.
If the evaporator located on the indoor unit is freezing, you may have simply chosen the wrong temperature setting or there may have been mistakes during installation. In order to determine the cause correctly, to solve the problem completely, you should turn to an experienced master.
Ice can cover not only the inside of the unit, but also the outside. It happens most often in winter when air conditioners perform the function of heating the room. What is the cause of formation of frost and ice on the elements and how can this unpleasant problem be solved?
The main causes of frosting of the outdoor unit:
The heat exchanger as well as the fan of the module is located outside, outside. That’s why parts are often contaminated with small debris and dust. If that is the reason for freezing, you can solve it yourself. But the unit must be easily and freely accessible. All contaminated elements must be cleaned with a water jet or a pressure washer.
It is possible that water got into the unit, which caused the tube to freeze. When the thin tube is covered with a layer of ice, the movement of the refrigerant slows down. This causes the outdoor unit to freeze completely.
The air conditioner requires less refrigerant to function properly during cold weather. Freezing occurs because of the large amount of freon. To solve the problem, the necessary amount of freon is removed. To do this, you need to contact a professional.
The outside unit also is freezing because the device is switched on heating, but the air temperature outside is lower than it is permitted by the instruction.
What steps to take in case you detected frost inside the conditioner?
You have estimated external signs and peeped under the lid of air conditioner expecting to see ice. And if you detected it, immediately disconnect the equipment. And do not try to make repair independently. there are too many and various reasons that cause icing and they are so diverse that without proper diagnostics (with using of special equipment and tools) it is impossible to detect the true source of problems.
Consult to professionals. Our masters solve such problems every day, help customers avoid costly repairs, work quickly and get the equipment “back in operation” without unnecessary costs. Immediately after diagnosis, they will calculate the cost of repair and continue only with your permission.
Look for specialists who will not cheat and will solve the problem once and for many years? Talk to us! is confident in the qualifications of their employees, so it confirms the quality of the work performed and installed spare parts two-year warranty.