The air conditioner does not turn on and the light is blinking. The air conditioning button on the Priora is blinking. Violation of control signal transmission
The air conditioner is not a critical component of the car. But if the air conditioning button on a Priora is blinking, it is better to try to quickly find out and fix the problem, without waiting for a serious breakdown and expensive repairs.
“Priora”: the air conditioner light is blinking
The “Priors” air conditioning switch has a green LED that starts flashing when the on-board computer registers a malfunction in the climate control system. It is almost impossible to determine the malfunction by the nature of the blinking. This could be either a breakdown or interruption in the operation of the sensors, or a lack of antifreeze in the system, breakdown of parts of the air conditioning system, or problems with the power supply of the unit. In rare cases, the problem may resolve itself, for example, a sensor malfunction due to high air humidity. But usually breakdowns require the intervention of a specialist.
How to count an air conditioner malfunction
If you turn on the climate control of the Priora and the air conditioner light blinks, you can find out the cause of the malfunction by connecting the tester to the on-board computer.
This device reads information from the computer and displays detected error codes on the screen. After this, the codes require decoding according to the tables corresponding to the car model. This not entirely convenient method is due to the fact that cars are produced for markets in different countries and the text description of the problem would still require translation. Codes are a universal, convenient way to present information. In order to understand why the air conditioner button on the Priora is blinking, you need to read the error code, which contains four digits. After correct decoding, troubleshooting will be easier and faster.
Air conditioner fault codes on Priora
If the air conditioner light on a VAZ Priora is blinking, the malfunction can be determined based on the error code read from the on-board computer. Depending on the code, the causes of the malfunction are as follows:
9338 - the temperature sensor located in the cabin is faulty; the sensor wire is broken or the connector is oxidized;
9337 - the temperature sensor located in the passenger compartment, or the wire going to it is shorted to ground;
9348 - the sensor recording the ambient temperature is faulty or the electrical circuit for its connection is broken;
9347 - the sensor circuit that records the ambient temperature is shorted to ground;
9378 - the evaporator sensor is faulty or the electrical circuit going to it is broken.
9377 - the electrical circuit of the evaporator sensor is shorted to ground;
9358 - the wire coming from the radiator sensor of the heating system is shorted to ground;
9412 - short circuit in the electrical circuit of the air mixer micro-reducer;
9413 - the electrical circuit of the micro-reducer is broken;
9420 - the electrical circuit of the micro-reducer winding is closed;
9426 - the electrical circuit of the micro-reducer winding is broken;
9440 - the power supply circuit of the additional resistor that regulates the speed of the heater fan is broken;
9860 - overvoltage of on-board network;
9861 - low voltage on-board network;
9607 - malfunction of the air conditioning system controller.
Air conditioner troubleshooting methods
If the air conditioning button on a Priora blinks, after reading and decoding the fault code, you need to fix the problem. Some faults can be eliminated yourself, without contacting a specialized service station.
If the computer signals an open circuit of the sensor (micro-reducer, resistor), you should check the connection connector, then the sensor (micro-reducer, resistor), then ring the wire.
If the error code indicates a short circuit, you need to unplug from the electrical unit and ring the wire and, if it is not closed, check the sensor itself or another device.
If the error code indicates low or high supply voltage, you should make sure that the generator relay is working properly or has bad contacts.
With a habitual movement, you took the remote control in your hands and decided to turn on the air conditioner. However, when you press the start button, nothing happens: the split system does not turn on from the remote control. Sometimes a similar problem occurs if the air conditioner was already running, and you wanted to change the temperature, change other settings, or turn off the split. What happened, why did the air conditioner stop responding to commands from the control panel?
Note! If, when turned on from the remote control, the air conditioner beeps and closes the blinds, and the indicators on its body flash or a alphanumeric inscription appears on the screen of the remote control or indoor unit, this means that the split system is going through an error. To understand the cause of the malfunction, it is necessary to decipher the illuminated error code. First of all, refer to the operating instructions for your air conditioner. Sometimes it contains a table of error codes and their interpretation.
If the air conditioner does not respond in any way to commands from the remote control, then the first thing you need to understand is whether the equipment is working at all. To do this, try turning on the split using the buttons on the body of the indoor unit.
Didn't work? This means that we are talking about a breakdown in which the air conditioner does not turn on at all. We will look at this situation in more detail in our next article. If the split system is turned on, you have to understand where the problem lies: in the remote control itself or at the “receiving side”.
If the air conditioner does not see the remote control, arm yourself with a cell phone with a camera and conduct a simple test. Turn on the camera and point the remote control at it. Press the button on the remote control. If the remote control is normal, infrared radiation will be visible through the camera. If nothing happens, then it doesn't work.
What to do if the split system control panel does not work
The first thing you need to do is check the batteries. If the air conditioner first responded poorly to the control panel, and then stopped responding to commands altogether, then most likely the batteries were simply dead and need to be changed. Did not help? This means that the remote control itself has failed.
Workshops do not repair faulty remote controls. This makes no sense from an economic point of view, since a new remote control costs around 1000 rubles. If you understand electrical engineering, you can, of course, try to repair the air conditioner remote control yourself. But buying a new one is a simpler and faster option, which we recommend.
Malfunctions in which the air conditioner does not see the remote control
If the remote control is working, its batteries are fresh, the air conditioner is turned on from the buttons on the case, but the remote control is not visible, we are talking about a breakdown of the photodetector. It is located in the indoor unit of the air conditioner and is responsible for receiving the signal from the control panel.
| Possible damage | Repair or replacement | Price*(only work) | |
| The air conditioner does not respond to the control panel, but is turned on from the button on the case. The remote control is working. | The photodetector, which consists of a photosensor and a microcircuit, has broken down. Due to failure, it does not receive a signal from the remote control and does not transmit it to the control board. As a result, the air conditioner does not respond to commands. | Repair is required (resoldering of failed radio elements on the microcircuit) or complete replacement of the photodetector. | from 1800 rub. |
| The wiring to the photodetector is faulty. During operation of the air conditioner, it broke. Perhaps the wiring has become frayed or mice have chewed it up (this happens in private homes). | It is necessary to restore damaged wiring or completely replace the cable with wires. | from 1500 rub. |
*The table shows prices for the work of a master. Spare parts necessary for repairs are paid separately.
The situation when the air conditioner does not respond to remote control commands is not a potentially dangerous breakdown, but can significantly complicate the user’s life. After all, split systems are usually located quite high and turning it on, as well as switching the cooling temperature using buttons on the indoor unit, is simply not convenient.
If this problem happens to your air conditioner, call:
RemBytTech specialists repair air conditioners and split systems of all brands and years of manufacture. We arrive promptly, get to work - we guarantee!
| What's happening | Possible reason | Try it | |
| 1 | The air conditioner cannot be controlled by the remote control | 1. The remote control batteries are dead. 2. There was a sharp drop in voltage in the network and the air conditioner “blocked”. 3. The power supply is disconnected (plug, circuit breaker). |
1. Replace batteries. 2. Turn off and on the outlet or switch the circuit breaker. 3. Connect the network. |
| 2 | There is no indication on the remote control | 1. The remote control batteries are dead. 2. The polarity of the batteries is reversed. |
1. Replace batteries. 2. Change polarity. |
| 3 | The air conditioner does not cool. | 1. The selected temperature is higher than room temperature. | 1. Lower the temperature on the remote control. 2. Turn off the air conditioner. |
| 4 | The air conditioner does not heat. | 1. The selected temperature is low compared to room temperature. 2. The outside temperature is lower than allowed for this air conditioner. |
1. Increase the temperature on the remote control. 2. Turn off the air conditioner. |
| 5 | The air conditioner turns on or off on its own. | Timer settings included. | |
| 6 | In off mode, all lamps on the air conditioner are lit. | Timer settings included. | Reset all timer settings. |
| 7 | The yellow light on the air conditioner is on. | Air filters are dirty. | Clean the filters from dust, then press the button under the front panel of the air conditioner and hold it for 5-7 seconds. |
| 8 | Water runs out of the air conditioner (when operating in cooling or drying mode) | 1. The drainage system is clogged. 2. Lack of refrigerant in the system. 3. The temperature outside is below 0º C, and the water drain is vented outside without heating. 4. The air filters are clogged, which results in poor heat exchange and the indoor unit freezes. |
1. Clean the drainage system (by blowing, washing with detergent, “pushing”,...). 2. Call a specialist for refueling. 3. Switch the air conditioner to heating mode or turn it off completely. 4. Clean the filters. |
| 9 | A cracking sound is heard when the air conditioner is turned on in cooling or heating mode. | The crackling sound is associated with a sudden change in temperature inside the air conditioner. | Wait, the crackling will pass. |
| 10 | The air conditioner does not immediately start operating in cooling/heating mode | There is a software delay between switching on/switching modes. The delay is 3-5 minutes. | Wait 3-5 minutes. |
| 11 | When the air conditioner is switched from cooling mode to heating mode, steam comes out. | After cooling, drops of water remain on the evaporators of the indoor unit. When heated, steam is formed. | Wait until the steam evaporates. |
Some preventive operations can (and should) be carried out directly by the owner of the air conditioner himself. In particular, it is quite capable of cleaning the main filters of the indoor unit, as well as replacing additional fine filters (carbon, catechin, etc.), which are not included in the standard package and are installed as an option. And do not underestimate the importance of these procedures - dirty filters significantly affect the heat removal from the evaporator, and this means a decrease in the efficiency of the air conditioner, possible freezing of the heat exchanger of the indoor unit, followed by thawing and overflow of condensate over the body and, most unpleasantly, over the wallpaper, wall or on objects located below. Prolonged use of an air conditioner without cleaning the filters also leads to contamination of the fan impeller - the consequences are the same as those just described.
Problem 1
A situation often arises when the air conditioner turned on and functioned normally for some time, but suddenly stopped and the lights on the panel began to blink.
Such symptoms occur in the event of insufficient or excessive amount of refrigerant in the system, failure of the indoor unit fan motor, compressor malfunction, or failure of temperature sensors.
Problem 2.
If, when you try to turn on the device, the only reaction is flashing lights, most likely there is a problem with the control system.
Problem 3.
Many modern models of climate control equipment have a self-diagnosis system. In case of malfunctions, the operation of the unit is blocked, and an error code is displayed on the panel. For a specialist, this inscription contains information necessary for subsequent work to restore the functioning of the air conditioner.
All the described situations indicate malfunctions that require the attention of a professional. When contacting the service center, describe the problem in detail. Experts will form an opinion about the severity of the problem. Depending on the decision made, the client will be provided with advice on correcting the error or will be promptly visited by a technician to carry out repair work.
As you know, even the most advanced technology sometimes fails. At these moments, it is necessary to correctly identify the causes of the breakdown, to know which of them can be eliminated independently, and which require the intervention of a specialist. For example, if, while turning on the air conditioner, you smell something burning, see smoke or obvious damage to the wiring, you should immediately call a technician. If the unit simply does not turn on, the power light does not light up, and the characteristic hum is not heard, you can try to find the reason yourself.
Air conditioning compressor does not work
There are several reasons for this. Firstly, defense mechanisms may be triggered - in this case, you yourself can easily identify these causes and eliminate them. Secondly, the air conditioner thermistors may fail, which will require the intervention of a technician. Therefore, first, make sure that all operating conditions of the device completely coincide with those described in the instructions.
Air conditioner protection
If you try to turn on the air conditioner a few minutes after turning it off or after changing the operating mode, wait a moment. The device may have a start-up delay, which protects it from overheating and inrush currents. After 3 minutes the compressor should start. In addition, the following protective mechanisms exist:
- in a compressor that requires connection to a three-phase network, protection against incorrect phase connection may be triggered;
- Protection against voltage surges in the network is activated if the voltage is lower or higher than the desired value. Also, the device turns off when a phase disappears;
- Temperature protection turns off the compressor if the readings on the remote control do not correspond to the actual room temperature. In this case, it is enough to simply change the settings of the unit and bring them into line with the correct indicators.
In addition, each of the air conditioner operating modes can be used within a specified temperature range. If these conditions are not met, the low evaporator temperature protection may operate and the unit will not start. If all the conditions for starting comply with the instructions, then the reasons for the compressor stopping are much more serious, and you need to call a service center that repairs Daikin air conditioners.
Malfunctions of the main components of the device
Often, starting problems occur due to the failure of the starting capacitor. Also, due to a break in the network or loss of contact, the thermistors of the air conditioner may refuse to work. In this case, it is necessary to check the resistance and the presence of contact of each of them with the main board of the device. The boards themselves responsible for defrosting may also not work.