The air conditioner does not respond to the control panel: causes, diagnostics, how to fix it, can the split system work without it

Many users are so accustomed to managing the split system from their hands that the situation when The air conditioner does not respond to the remoteseems like a disaster to them. And although there is nothing surprising in the failure of the box with buttons, to understand reasons is a must.

Types of faults - diagnostics

There are several options for failures, as a result of which the air conditioner stopped responding to the remote control. To establish the cause, it is necessary to sequentially diagnose all links in the chain: from the remote control to the air conditioner control board. This is the only way to find the reason why the electronics air conditioner does not respond to the remote control.

Diagnosis scheme:

1. The remote control is checked with the replacement of batteries with known working batteries.
2. A power test is in progress, it is necessary to establish whether the board responds to commands.
3. The board is dismantled with the installation of a control, obviously working part. If air conditioner responds to commands, so the problem is in block electronics.

Oddly enough, but in 70% of cases it is to blame Remote Control. That's where you need to start diagnosing.

First check

Home split systems are controlled using an infrared LED on the remote control and an air conditioner receiving sensor located on the front panel. Often the window is even tilted down, as, for example, in split-systems Samsungso that the glare does not interfere with reception signal.

If the system does not respond to the remotemanagement, then the first thing that comes to mind is to come closer, reach out and press the button harder. Sometimes it works if it is heavily discharged batteries and the signal is weak. Therefore, you need to replace the batteries and try again. If the split system does not respond, then more detailed diagnostics will be required.

Healthy: How to start the air conditioner after winter

Emission test

What to do if the remote is broken? Often problem, due to which the system does not respond to commands, is faulty LED. Unfortunately, a person cannot see the flashes of the radiating element, his eyes do not react to infrared radiation.

But you can use a special multimeter equipped with an infrared port. It is enough to bring the remote control to the receiving window instrument and turn on the signal reception mode. If the multimeter gave no signal and there is no reaction from pressing the buttons, then the device under test may be faulty.

To exclude an error, it is necessary to conduct a control test. Use a working device from the TV, such as a universal remote Hisense. If the multimeter responds to Hysens, then the problem is clearly in the remote control.

Check device can be used with a smartphone that has a night mode. Just point the camera and press the power button a couple of times. On the screen you can see a "queue" of barely distinguishable flashes. If they are not there, then the split system will obviously not turn on from the remote control due to a breakdown of the device.

Replacement check

Often there is simply no multimeter or smartphone with a good camera at hand, but to establish the reason why the air conditioner does not turn onneeded urgently.

One way to check involves the use of universal PUs, such as Lessar or Gree. Their built-in command set is suitable for any device, so there is a chance that the air conditioner will at least turn on and off.

What to do if the split system control panel does not work

Before buying a new one, you need to try to repair the "native" launcher. In about half of the cases, the split system does not work with the remote control due to a non-working keyboard.

There are two options:

• due to too strong pressure on the buttons of the silicone keyboard, the ferrite inserts were crushed;
• track contacts are dirty.

First The trick is to remove the batteries and disassemble the case. Inside, an electronic board and a silicone overlay with buttons will be visible. You can feel the board and silicone with your fingers. Often the batteries are shorted, the electrolyte flows out and gets on the board. The contact disappears, as a result, the air conditioner will not respond, even if new batteries are inserted.

All that is required is to wash the keyboard under water with liquid soap. For this, any unnecessary toothbrush will do. Wash thoroughly, especially ferrite inserts in buttons. If even a little electrolyte remains, the control panel will not respond to pressing the buttons.

The board is not washed, the contact tracks are wiped with alcohol several times to remove plaque. Before assembling, the parts must be dried from moisture residues.

Immediately you need to pay attention to the state of the keyboard. The ferrite "pigs" inserted into each button must be intact. But even if the ferrite is cracked, it can be repaired. For example, wipe with graphite or stick pieces of foil on top.

You need to glue it carefully, with a minimum amount of conductive glue. In this case, the air conditioner may not respond to pressing the button the first time. For a damaged button, three or four clicks will be required.

What to do if the remote control is working, but the air conditioner does not work

If a preliminary check showed that the “native” control panel is working, and the split system is silent and does not respond to pressing even the outer panel of the unit, the cause must be sought in the wiring.

First of all, you need to check the voltage in the network. If the multimeter shows 220-235 V, then the socket is working and there are no complaints about it.

The next steps are more difficult:

• the air conditioner must be de-energized, disconnected from the outlet;
• then you need to lift the block cover and remove it from the hinges;
• remove the filter mesh;
• use a screwdriver to remove the screws and remove the housing lining.

Right on domestic The power supply unit is located in the split system unit. You need to get to it and check the supply voltage at the input terminals. Often this requires the removal of additional blocks.

Advice! It's not difficult, but you need to remember the location of the parts and how they are attached. Therefore, before removing the knot, it is photographed on the phone. This will be the build prompt.

As soon as you have access to the power supply, you will need to remove the terminals in the PSU case, then plug the air conditioner cord into a power outlet and check the voltage again. If power is supplied, then remove the plug from the outlet and remove the power supply and control board.

The power supply can be repaired with your own hands, sometimes in order for the air conditioner to start responding to commands, it is enough to clean the contacts or replace the fuse. In more difficult situations, you have to change the burnt filter capacitor.

The board is usually rejected if, after restoring the power supply and installing it on the air conditioner, everything also does not respond to commands, both from the remote control and from the external panel. To check, you can temporarily install for air conditioning working control board, connect the power supply unit and the power cord. If the split system began to respond and execute commands from the remote control, then the problem is in the board.

There is no point in repairing it, it is cheaper to buy a Chinese analogue. Before installing a new part on an air conditioner, it is better to check it on a working split system. Since the reason for the failure of the board could not be established, it is possible that the culprit for the fact that the board does not execute the remote control commands is the power supply.

Therefore, a new PU is put on the air conditioner only after checking its performance. If in the future it turns out that the split system again stops responding to commands from the remote control, then it will not be difficult to determine the culprit, it will be the power supply.

How to control air conditioner without remote control

Some manufacturers of split systems indicate in the instructions the models of remotes from other air conditioners that can be used for this brand. But complete interchangeability, as a rule, does not happen, so the air conditioner can only respond to some built-in commands. In addition, the location of the buttons on the keyboard is different, so you need to get used to a different remote control.

The easiest way is to buy a universal model to control a TV, split system or home theater. But such remotes require "training" and software settings. The new device can only respond to on and off commands. The rest will need to be recorded from the window of the air conditioner.

In addition, there are many ready-made applications for smartphones. If your phone has an infrared port, you can set it up to control the air conditioner. Moreover, the air conditioner will respond and execute commands in the same way as on a native remote control.

Moreover, the application may have additional functionality that will allow you to program the operation of the split system. But first you need to set the range from which the air conditioner reacts and executes commands from the smartphone. The phone will have to be stored somewhere within reach of the split system.

air conditioning can run and stop manually pressing control button on the front panel of the case. True, for this you will have to climb to the split system every time with the help of a folding ladder.

Healthy: Proper use of the split system

Results

If the split system does not respond from the remote control, then this is not a reason to panic. In most cases, the reason for the shutdown is the souring of the keyboard or dead batteries. It is quite possible to restore the operation of the remote control with your own hands, only in some cases you will need a multimeter or a smartphone.

Tell us about your experience in restoring the operation of a split system. How did you manage to make it work at the command of the launcher? Also, if the information seemed useful to you, share the article on social networks and bookmark it.