Error Split system LG inverter

Decoding and instructions for codes of errors of air conditioners LG

In the General Climate air conditioning, problems that have arisen are indicated using a letter and numerical cipher.

Users face the following codes on the scoreboard:

  • E2. Problems with the sensor that controls the degree of air heating indoors
  • E3. Refusal of the thermal attewer of the evaporator;
  • E4. Refusal of the capacitor thermal attemptor;
  • E5. Problems with drainage pumping;
  • E6. Problems with outside protection.

When using equipment, General climate in the room manages to maintain at the optimal level. By serving the equipment and implementing the manufacturer’s recommendations, it is possible to significantly increase the service life of the device.

Self.Diagnosis of air conditioning LG

Difficult working conditions, intensive loads or incorrect calculations when designing the entire air conditioning system can adversely affect the premium class car conditioner. However, the function of self-diagnosis, which the climate technique of LG has, makes it possible to detect and neutralize the reasons in time, due to which the device may fail.

The air conditioner independently launches certain diagnostic processes at each stage of functioning, checking the performance of a particular node.

If certain problems are detected during monitoring, the operation of the device is blocked by a control microcontroller, and the device itself issues a specific error signal. It can be presented in the form of a digital letter on the display or display by blinking certain diodes on the block. The number of outbreaks of a separate diode is interpreted as a separate error code.

Displaying errors of air conditioners of the LG brand has a certain feature. If the internal self.Diagnosis system finds several malfunctions, then first the block gives an error signal with the least serial number. Each subsequent code will be displayed in an increase in order.

For example, if the system has a cliff in the circuit (error C2 or C4) and the fan of the external unit does not rotate (error C9), then the air conditioner will first indicate a break, after which he will sit on the stop of rotation of the blades in the external unit.

Deciphering the blinking of LEDs

As described above, the internal block of the home split complex is equipped with a special diode. If certain malfunctions occur in the air conditioning system, this lamp begins to blink. A flash can be made from one to ten times, signaling a specific error. At the same time, the interval between a series of blinking diode in the air conditioner is 3 seconds.

Error 1 is expressed in a single flashing lamp every 3 seconds and indicates a break or short circuit in the internal block of the split system, which is why breakdowns in the board occur. To eliminate the problem, they check the work of thermores in the internal unit and, if necessary, replace these nodes.

Error 2 (flashing diode twice) signals a similar problem with thermoresistors that are installed in the external unit.

Neutralization of the breakdown occurs in the same way: the temperature sensors of the incoming air or the temperature of the gas circuit tube are checked, but already in the external unit, and they are replaced.

Error 3 (3 flashing) is associated with the installation of the system and occurs when the air conditioner’s work is aimed simultaneously at heating and cooling. It is necessary to check the correctness of the wire connecting, the interlock cable and the correctness of the air conditioner connection.

Error 4 (4 flashes) indicates the launch of the compressor protection system, which is overloaded. To eliminate, check the work of the thermallane of the external unit, fix the indicators of the current load and gas pressure in the system. These measures will help to find out the reason due to which the compressor may fail.

Error 5 (5 flashing) occurs with an incorrect exchange of data between the apartment and external block. With this code, the lines of cables are tested in which a gap or closing may occur. After diagnosis, you may need to replace inter.Block joints.

Error 6 (6 blinking) appears after a short.Term increase in consumption current in the external unit. In such a situation, all external units and key power relay are checked.

Error 7 (7 flashes) also signals the excess of current in the outer block, but in this case the consumption threshold goes beyond the norm for a long time. For diagnosis, it is necessary to check the pressure of the refrigerant in the system and eliminate the malfunctions of all elements in the external unit.

Error 8 (8 blinking) speaks of problems in the fan engine. In addition to direct verification of this node, it is necessary to examine the elements of its control scheme and contact terminals.

Error 9 (9 outbreaks) requires checking the 4-year valve.

Error 10 is associated with the closure or cliff, which could cause a breakdown of the thermoresistor responsible for monitoring the control of the body of the built.In compressor. After diagnosis, the thermorezistor is most likely to be replaced.

What the errors of split systems LG say?

In addition to flashing LED codes of typical malfunctions of the air conditioner, LG may have a digital.Boom display. Such a system is also present in the extremely popular ART Cool series, represented by elegant wall air conditioners. The value of the decoding of codes according to this technology is largely echoing with the interpretation of the blinking of LEDs.

Typical errors regarding the closure or break of the chain in separate areas have the following values:

In addition to these errors, there are also others.

Errors indicating problems with the compressor, do not ignore. It is advisable to perform diagnostics, detect the cause of the breakdown and eliminate it.

There are also letter errors. So, the error of the CA speaks of a high injection temperature. Over 130 degrees.

SS code indicates errors in the internal energy.Dependent memory of the device.

CD designation is a signal of problems in the inverter module.

Text symbols RO and LO are not errors. The first code indicates the operation of the system in the energy.Saving mode, the second. About the passage of the equipment testing phase.

error, split, system, inverter

Brand Inverter air conditioners errors

Displaying the results of self.Diagnosis of the inverter line of brand air conditioners can be flashing several diodes on the block. By the number of outbreaks, an error code is calculated. For example, if one LED flashes 5 times, and the second. 3, the malfunction has code 53.

error, split, system, inverter

Blinking one lamp, alternately changing color. The error code is calculated by a similar algorithm: flashes of the same color are calculated, their number will become the first number in the code, and the second, the number of blinks of which is interpreted as the second digit of the cipher.

How to eliminate the malfunctions of the air conditioner LG?

Information about current shortcomings in the operation of the equipment makes it possible to independently eliminate them.

But, unfortunately, the owner of the air conditioner can correct far from every mistake.

If the LG air conditioner provides information about complex breakdowns, you should definitely invite a certified specialist-owner. Previously, you need to restart the air conditioner: perhaps after rebooting the error will disappear.

The master will have to resort to the services of the master if the device signals the such malfunctions:

  • Problems in the compressor;
  • Errors in the operation of units of the electronic control system;
  • Refrigerant leakage;
  • Improper operation of the electric motor.

The user can independently unlock the blinds if unauthorized objects prevent their normal work. As well as cleaning equipment or planned replacement of filters and solving problems with the power supply of the device.

The latest works are related to the installation of a voltage stabilizer, because often complications in the operation of the air conditioner arise precisely due to the unstable supply of current in electric networks.

It is worth remembering that disassembling the device yourself is extremely undesirable. In addition to irreparable damage, which the owner can cause equipment due to lack of knowledge and skills, you can lose free warranty service.

LG air conditioning errors

Error codes of inverter models of split systems LG. Error codes of individual split systems and multi-systems LG with two or more internal blocks.

= IPM LG malfunctions (compressor from overload by current)

Case- error = compressor of the malfunction, IPM faults

Error case = DC voltage is 140V

= LG. Low / high pressure

The light is red. The LG split dicator blinked 2 times

Malfunction. Low / High press switch open cycle

LG. AC low / alternating current, increased voltage

The light is red. The LG split dicator blinked 2 times

LG inverter AC error code CH 05

Malfunction. AC input voltage.140V, 300V

The light is red. The LG split dicator blinked 2 times

The light is red. The LG split dicator blinked 2 times

Inverter LG AC Error Code with Solution/Troubleshooting

Malfunction. From overloading on current to “igbt”

The light is red. The LG split dicator blinked 2 times

Non.Land = DC voltage is 420V

= graduation pipe TEMP. High (inv. Compressor)

Light diode red = indicator of the split system LG VNTR. Air conditioning unit blinked 2 times

Malfunction. Sensor reset high temperature. (105oc)

= graduation pipe TEMP. High (Cons. Compressor)

Malfunction. Sensor reset high temperature. (105oc)

Malfunction. CT malfunction of the Off chain

= D-pipe inv. Compressor (Open / Short)

Malfunction. Open / short circuit

= air sensor (open / short

Malfunction. Open / short circuit

= Dir. Sensor pipe (Open / Short)

Malfunction. Open / short circuit

= Suction pipe Sensor (Open / Short)

Malfunction. Open / short circuit

= D-pipe minuses Sensor. Compressor (Open / Short)

Malfunction. Open / short circuit

= D-pipe air sensor (open)

Malfunction. The double sensor is disabled. The connection of the cluster temperature sensor of the Comressor and the sensor of the aircraft in the outer block is opened. It is necessary to check the sensors and their connection, connecting wires or control board.

= Communication error (open open)

Malfunction. Control amount MIS-Match

error, split, system, inverter

= Dir. Temperature sensor pipe

Non.Commissioned = cond. The temperature is high (65oc)

= radiator temperature sensor

Light diode red = indicator of the split system LG VNTR. Air conditioning unit blinked 2 times

Malfunction. TEMP radiator. High (85oc)

= radiator Sensor (Open / Short)

Malfunction. Open / short circuit

Non.Land = DC voltage is 420V

LG CH-01 The malfunction of one of the thermoresistors of the board (rupture or short circuit) of the internal indoor, the wall block of the split systems. Control of the temperature of the incoming air and the tube of the gas circuit of the air conditioner

LG CH-02 The malfunction of one of the thermoresistors (rupture or short circuit) of the external unit: the temperature sensor of the incoming air or the temperature of the gas circuit tube

LG CH-03 Air conditioning works simultaneously for heating and air cooling

LG CH-04 enabled a compressor protection system from overload

LG CH-05 Error data exchange between indoor and outer blocks of split systems

LG CH-06 consumption of one or more executive devices of the outer unit. Relay, was shortly higher than the norm

LG CH-07 Consumption of the entire external unit for a long time was higher than the norm

LG CH-08 Fan Engine Falf

LG CH-09 Fault 4. Chassis

LG CH-10 is faulty the thermoresistor of control of the temperature of the compressor of the split system (break or short circuit)

LG air conditioning errors

If the air conditioning control system has discovered more than one error, first an indication is indicated with the smallest serial number, and then all the rest (by increasing the serial number of the error). LG air conditioning codes are given in the table. One.

Code of faults. The procedure for flashing the LED in case of a malfunction is a possible cause of malfunction to eliminate the malfunction
one The malfunction of one of the thermoresis (rupture or short circuit) of the internal (indoor) unit of the apparatus. Monitoring the temperature of the incoming air and the gas circuit tube Check the serviceability of the unit of the thermoresistors of the indoor unit
2 The malfunction of one of the thermoresis (rupture or short circuit) of the external unit: the temperature sensor of the incoming air or the temperature of the gas circuit tube Check the serviceability of the unit of the external unit unit
3 Air conditioning works simultaneously for heating and to cool air Repeatedly set the operating modes of the air conditioner correctly. Check the serviceability of heating control systems and air cooling
4 The compressor protection system is off from overload Check the serviceability of the compressor protection system from overload
5 Data exchange error between indoor and outer blocks Check cable lines, as well as metabolism diagrams of both blocks
6 The consumption current of one or more executive devices of the outdoor unit was briefly higher than the norm Check the serviceability of the executive unit of the external unit and their control elements (key power transistors)
7 The current consumption of the entire external unit was higher than the norm Check the pressure of the refrigerant in the system, and then the serviceability of the elements of the external unit
eight Fan engine malfunction Check the serviceability of the engine, as well as elements of the control scheme
nine Malfunction 4. Chassis valve Check the valve serviceability
ten The thermoresistor of control of the temperature control of the compressor housing (cliff or short circuit) is faulty Check the serviceability of the thermoresistor and, if necessary, replace it

It should be noted that such errors may occur if the parameters of the supply network (as well as other parameters. See. The instruction manual for a specific type of apparatus) do not satisfy the recommended values, as well as as a result of an accidental failure of the air conditioning control system. Therefore, before proceeding with the detection of a malfunction or contacting the LG authorized service center, it is necessary to de.Energize the device, check the supply network, the correct choice of the operating modes, and then turn it on again. In some cases, an error may no longer occur.

Error codes of inverter split systems LG

The main reason for the malfunction of inverter split systems LG is the insufficient voltage of the electrical network. Error codes of both ordinary split systems and multi LG air conditioners with two or more internal blocks, examples of errors removed from the inner block of multi.Split systems, as an example:

Malfunction code = e1 codes of error Haier indicator time. Lamp. The compressor works indicate the lamps Haier = 1 A Title = incorrect air conditioning Haier (old) = temperature sensor is broken by the wrong air conditioner (new) = temperature sensor is closed

Malfunction code = E2 Haier time indicator. Lamp. The compressor works indicate the lamps = 2 irregular air conditioning (old) = closed the coil temperature sensor is broken by the wrong air conditioner (new) = closed sensor of the coil temperature broken

Air circulation control and mode adjustment

Air flow can be adjusted using a remote control for the air conditioner. Instruction LG 6711A90023C describes this process: first of all, the device should be launched. Next. Press the “Chaos Swing” button. In this case, the angle of disclosure of the blinds will change automatically. To fix the right position, press the “Chaos Swing” button.

The flow to the sides (left/right) is also regulated using the PD. The operation is carried out in the manner that is similar to the previous.

Important! The use of the Chaos Swing button automatically changes the direction of air flow due to the special algorithm for its movement. Such a stream provides the effect of the summer wind.

The instructions of the remote control for the air conditioner LG 671A20010B indicate the procedure for launching the air recirculation mode. To do this, press the ventilation mode, then select the appropriate speed of the internal unit fan.

Important! In this mode, the air is not cooled and does not heat up. Accordingly, there is a significant economy of electricity and hypothermia is prevented.

Automatic restart on most models is launched by holding the VKL/OKL button for 6 seconds. The efficiency of the operation will be reported by a double sound signal and a 4-rack indicator flashing.

This function is indispensable with a sudden disconnection of electricity. After re.Starting, the program will restore the initial data or resume the previous settings.

Note: The instructions for the LG Inverter V air conditioner console say that the ventilation mode is launched by pressing the Plasma button.

Detection and elimination of malfunctions of the air conditioners of the LG brand based on the results of internal self.Diagnosis

Modern air conditioners have a developed self.Diagnosis system, according to the results of which the internal control system, when a particular malfunction is detected, blocks the work of the entire device and at the same time reports the cause of the malfunction.

The LG air conditioning control system reports that there are malfunctions by blinking the LED on the internal (in some cases of the external) block. If a particular air conditioner is detected, the LED flashes a certain number of times corresponding to the identified error. Then, after 3 with this cycle, each time is repeated again.

If the air conditioning control system has discovered more than one error, first an indication is indicated with the smallest serial number, and then all the rest (by increasing the serial number of the error). LG air conditioning codes are given in the table. One.

Code of faults. The procedure for flashing the LED in case of a malfunction is a possible cause of malfunction to eliminate the malfunction
one A malfunction of one of the thermoresis (rupture or short circuit) of the internal (indoor) unit of the device. Control of the temperature of the incoming air and the gas circuit tube Check the serviceability of the unit of the thermoresistors of the indoor unit
2 The malfunction of one of the thermoresis (rupture or short circuit) of the external unit: the temperature sensor of the incoming air or the temperature of the gas circuit tube Check the serviceability of the unit of the external unit unit
3 Air conditioning works simultaneously for heating and to cool air Repeatedly set the operating modes of the air conditioner correctly. Check the serviceability of heating control systems and air cooling
4 The compressor protection system is off from overload Check the serviceability of the compressor protection system from overload
5 Data exchange error between indoor and outer blocks Check cable lines, as well as metabolism diagrams of both blocks
6 The consumption current of one or more executive devices of the outdoor unit was briefly higher than the norm Check the serviceability of the executive unit of the external unit and their control elements (key power transistors)
7 The current consumption of the entire external unit was higher than the norm Check the pressure of the refrigerant in the system, and then the serviceability of the elements of the external unit
eight Fan engine malfunction Check the serviceability of the engine, as well as elements of the control scheme
nine Fault 4. Chassis Check the valve serviceability
ten The thermoresistor of control of the temperature control of the compressor housing (cliff or short circuit) is faulty Check the serviceability of the thermoresistor and, if necessary, replace it

It should be noted that such errors may occur if the parameters of the supply network (as well as other parameters. See. The instruction manual for a specific type of apparatus) do not satisfy the recommended values, as well as as a result of an accidental failure of the air conditioning control system. Therefore, before proceeding with the detection of a malfunction or contacting the LG authorized service center, it is necessary to de.Energize the device, check the supply network, the correct choice of the operating modes, and then turn it on again. In some cases, an error may no longer occur.

Note.

  • The set of malfunctions depends on the air conditioner model.
  • After eliminating the malfunctions of 6 and 7, it is necessary to de.Energize the air conditioner for a while, and then turn it on again.

As an example, we give the frequently found defect in the models of air conditioners of the LS-D series, which can be eliminated if some changes to the electrical circuit of the internal unit.

After the air conditioner’s work, for some time, he stops working and on his inner block periodically flashes the LED in series five times. The LED does not glow on the external unit case.

Based on the table, we can conclude that there was an error of data exchange between indoor and external air conditioning units.

The malfunction may be caused by the fact that due to external interference, the data transmitted by the external unit are not accepted by the receiver of the indoor unit. A similar defect is manifested if the supply voltage does not correspond to the recommended parameters, as well as due to the fact that on the data line between the air conditioner blocks, an obstacle signal penetrates from the power supply circuits.

To eliminate the defect, the value of the support voltage from 2.5 V to 5 in the data receiver of the indoor unit is changed. To do this, remove the resistor R94 on the electronic board of the unit.

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