Kentatsu air conditioner errors: how to determine the violation by the code and carry out repairs

Types of air conditioner malfunctions

Chinese TCL air conditioners have proven themselves in the world market as an inexpensive and reliable climate technology. But from time to time they also become unusable and require a comprehensive repair.

All malfunctions of TCL split systems can be divided into:

• voltage, current or temperature sensor errors;
• firmware EEPROM malfunctions;
• problems with the engine of the indoor unit;
• changes in interblock links;
• emergency stop errors.

You can find out that the device has malfunctioned thanks to the indicators on the case. air conditioning and split systems or information shown on the display. Those. sometimes the timer LEDs, which were previously lit with a steady light, suddenly start flashing (chaotically or in a certain order), and sometimes an alphanumeric combination appears on the display.

It is important to correctly identify the combinations of letters and numbers that appear on the display of the TCL air conditioner in order to determine the repair and completely repair

When an error indication appears, much depends on when exactly the malfunction occurred. If the breakdown of the air conditioner was discovered during the installation of the device (and the installation of equipment is carried out by a representative of a company accredited by the manufacturer), the owner of the split system may require the replacement of the product.

If the air conditioner malfunctions a few months or years after installation, the device will need to be repaired at a service center or repaired independently.

The most common Gree air conditioners

The question is not idle, since in most cases the layman is rather poorly aware of the types of air conditioners. In addition, air conditioners of the same type often have several different names.

When talking about household air conditioners, in most cases they mean two-block wall-mounted inverter split systems. Air conditioners without an inverter are already yesterday, in the world they are beginning to be banned for sale.

Gree inverter air conditioners are the most popular air conditioner model in the world. Climatic equipment without an inverter is a thing of the past

To put it simply, split systems are such air conditioners, one “box” of which hangs outside the window, the other in the room. Gree also produces multi-split systems. Multi-split systems are when there is only one “box” outside the window, and several “boxes” inside the house and all literally create “weather in the house”.

Have a closer look? Did you see a box outside the window? Great, that's enough, let's continue the diagnostics.

Griya air conditioners can use refrigerants for operation:

• freon R22;
• freon R410a.

The chemical formula of the first substance is difluorochloromethane, the second is a mixture of pentafluoroethane and difluoromethane. It is not necessary to memorize the names, the main thing to remember is the mistakes of two- and multi-block air conditioners of the Grii brand, operating on different refrigerants, are displayed in the same way.

DIY troubleshooting

And now we will consider what troubles the owner of a conventional split system may encounter, and find out how they can be eliminated by “legal” methods.

The manufacturer divides all the "oddities" of the operation or stop of the device into 2 categories:

• malfunctions;
• phenomena that resemble malfunctions, but are not them.

First, let's look at cases from the first category, when the air conditioner really does not work or does not work correctly. They can be divided into 3 groups.

Split system stopped working

The unit can stop due to a breakdown of any important unit, but more often it does not turn on for banal reasons. First, check the power supply to the device: is the “On” button pressed, is the power cable plug in the socket and is the machine cut out due to overvoltage

Perhaps these are general power outages - try turning on the lights. If the lights do not light up, just wait for the power supply to resume or call the Energy Supervision operator

To begin with, check the power supply to the device: is the “On” button pressed, is the power cable plug in the socket and is the machine cut out due to overvoltage. Perhaps these are general power outages - try turning on the lights.If the lights do not light up, just wait for the power supply to resume or call the Energy Supervision operator.

If you are using a remote control or wall panel, the signal may not come out due to a bad battery. Just replace the batteries with new ones, after checking the expiration date

Owners of units with a timer should never forget about the settings. If you want to turn on the split system before the specified time, it will not work, of course. Be sure to check the preset settings and adjust them or just reset them.

If no action helps, and the air conditioner does not react in any way to attempts to turn it on, you will have to call the technical service.

Insufficient cooling or heating

If the equipment is operating normally, but the temperature in the room does not change, first check that the windows and doors are closed.

The next step is to adjust the settings. The heating or cooling settings may have been set too low, causing the unit to only maintain normal room temperature.

Do not forget about such a feature of the split system as a possible 3-minute turn-on delay. Just wait until the unit starts working.

While waiting, you can look outside and make sure that the outdoor unit is free and that nothing has accidentally fallen on it from the balcony or upper floors. Air access to the grate must always be open

A common cause of any malfunction is filter contamination. Clean quickly with a vacuum cleaner or more thoroughly with soap and water.

Filter cleaning instructions:

1. Raise the front panel until it clicks, so that it stays open.
2. Carefully take the filter frame by the fasteners, lift it up and remove it.
3. For dry cleaning, use a vacuum cleaner, for wet cleaning, use a cloth soaked in water.
4. If, in addition to coarse filters, bactericidal and carbon filters are installed, remove them and vacuum them, and replace them after six months of use.

Do not use aggressive or abrasive agents. If you clean the filters every 2 weeks, the operation of the split system will stabilize, and problems will occur much less frequently.

Disruptions in work for various reasons

Much less often, Kentatsu air conditioners have malfunctions that require the immediate intervention of technical support workers.

On the territory of Russia there are more than 80 authorized service centers, mainly in large cities.

If you live outside the city, you can call the master at home or consult by phone. Often a few professional tips will help you troubleshoot problems.

Reasons for qualified intervention:

• frequent or random flashing of indicators that does not stop after several attempts to turn on / off;
• permanent shutdown of the machine on the electrical panel;
• ingress of foreign objects or water into the body;
• Interruptions in the operation of the remote control or the power button.

Do not forget that the incorrect installation of one of the units may cause poor performance. That is why the manufacturer recommends contacting professional installers, and not connecting the split system yourself.

The device does not turn on

These are the most basic malfunctions of air conditioners, and every owner has encountered them at least once. Regardless of the brand, model, country of origin, the reasons here will be the same.This problem lies in the electrical part and lies in the fact that the device is simply not connected to the power supply, the control board is faulty, or there is no communication between the indoor and outdoor units. Also, a common reason is the failure of the remote control or the receiving module of the device. There is another error. Due to certain circumstances, the device could go into protection mode and give an error when turned on. Finally, the device does not turn on due to the banal wear of some parts. In some cases, the split system does not work or incorrectly executes the owner's commands due to incorrect switching in the signal and power wires connecting the blocks.

How to turn on the air conditioner for heat

I want to say right away that if you make a mistake somewhere, then nothing terrible will happen! You just have to wait and do it all over again.

1. Turn on the air conditioner by pressing the "on / off" button once.

We wait a few seconds until the blinds open and the fan of the indoor unit starts to rotate;

1. Then we press the mode switch button as many times as we switch to the sun icon or the inscription “heat” (which means “heat”).

After that, the air conditioner may stop the fan rotation or close the blinds (this will happen if the air conditioner was not already set to heat). What else will happen to the air conditioner, I will write a little lower, but now it does not matter. But at this moment we are already moving on to the next setting (to the third point)!

1. While the air conditioner is being “reconfigured” with the temperature adjustment buttons, we set the degrees to 30. Let it be so for now, and after 20 minutes, adjust it for yourself (I recommend 25-30 degrees).

1. Next, use the shaft rotation adjustment button to set any speed convenient for you;

1. We also set the position that is most convenient for you with the button for adjusting the blinds. Then the most difficult thing is to WAIT until the long-awaited warmth blows from the air conditioner. Then we set up the air conditioner comfortably for ourselves. Read more about the choice of temperature, as well as the last two points, read the article on how to use the air conditioner correctly;

Now let's get back to the second point. I want to explain in simple user language so that you are not afraid that something strange is happening with the air conditioner. There is nothing strange in his behavior! Just after switching the mode, the air conditioner operation algorithm changes, and it redirects the movement of the refrigerant (now you can not delve into this!). There is a temperature control of radiators and other processes that are not important for our article

The most important thing for this article is only that you need to wait 10 minutes and do not press anything extra

But there are a few features that should not be forgotten when turning on for heating:

• when working on heat, the “split” fan may stop periodically (to heat the radiator). Don't be scared! In most cases, this is his normal job;
• if you don’t know at what outdoor temperatures your particular model can be used, then I don’t advise you to turn it on at negative outdoor temperatures. Some air conditioners have protection for these cases, so they may not start. For more information on this issue, read the article on the possibility of turning on the air conditioner in winter;
• if the current temperature in the room is higher than you set, then it will not “warm up”;
• there are models that work only for cooling, although such samples have recently come across extremely rarely.At the same time, other modes can be displayed on the remote control. Specify the possibility of working on heat specifically for your model;
• if after all my recommendations it was not possible to start the device for heat, then contact the specialists. Perhaps something is out of order.

If during the cold period you were freezing when you didn’t have an air conditioner, then with its purchase you will immediately feel the difference. The heat that an air conditioner provides you is cheaper than any heater

And more importantly, the temperature is very precisely maintained at the same time.

Finally, I will leave a link to another useful article about air conditioning heating.

I look forward to your comments and additions!

Kentatsu is a well-known brand under the brand name of which high-quality climate equipment of various models is produced. The Kentatsu trademark is the direct successor of TANIGUCHI DENKI, a company whose products first appeared on the market back in 1887. Today Kentatsu is the largest manufacturer and supplier of modern equipment: air conditioners, split systems, vrf and vrv systems, devices for heating and cooling, air purification.

The products meet high requirements - it is a harmonious combination of price and quality. It is not for nothing that the motto of Kentatsu in translation sounds like “reasonable sufficiency”. Models of air conditioners are endowed with all the necessary functions, they are practical and easy to operate, the system works smoothly, errors and failures are rare. At the same time, such a technique is devoid of frills, additional functions that are most often not required and act only as a way to increase the price of the device.

Buttons on the remote control of the air conditioner

Any split system remote control has five main buttons:

1. Power button;
2. Mode switch button;
3. Double temperature adjustment button;
4. Shaft speed adjustment button;
5. Blind direction adjustment button.

More information about the meaning of these buttons can be found in the article cooling settings.

But before picking up the remote control, first turn on the air conditioner (like any electrical appliance). Most often, this is just a plug that needs to be plugged into an outlet. The air conditioner can also be powered through the machine in the electrical panel. In general, depending on the method of connecting the air conditioner, we turn on the machine or plug the plug into the outlet. At the same time, you should hear a beep from the indoor unit. If the unit does not react in any way, then read the article, because of which the air conditioner may not turn on. After successful power up take control of the remote and let's move on!

Malfunctions of electronic control boards

The failure is related to software settings and settings, when all LEDs are constantly flashing, and the system itself does not turn on. To troubleshoot, the system is simply reprogrammed using special codes.

The likelihood of a burnt control board increases if the voltage is constantly jumping. The same thing often happens with short circuits. New microcircuits are put in place of the old ones, the latter are soldered out of their places. Separately, the buffer circuit is checked, the triacs are replaced with more powerful varieties.

Most manufacturers complete control boards with solid-state switches that rotate a fan. If there are problems with the operation of this part, you can take a closer look at the board. Separately, the resistance of the part is preliminarily measured.If the indicator is closer to zero, the broken chip is also soldered.

Sign of control - the following parts that work intermittently:

• Motion Sensor.
• Temperature sensor.
• Compressor.

There is no need to take measurements if you can see with the naked eye that one of the microcircuits has burned out. It is necessary to immediately replace the sevenistor, starting work.

Errors in interconnections are often made during installation. Even professionals are not completely immune to this. In such situations, details like a voltage stabilizer and a transformer, diode bridges are the first to burn out. If the air conditioner board burns out completely, its repair becomes impossible, the part is replaced with a new one.

The control board changes in the following order:

1. Turn off the power.
2. Removing the cover at the top when the case is disassembled.
3. Boards are removed from the grooves, unscrewing all elements for fixing, including wires with connectors.
4. Replace with a new part, assemble in reverse order.

In the case of a faulty board, it is better to contact the service center immediately. The work itself is expensive, and the slightest mistakes can adversely affect the operation in the future.