Zanussi air conditioner's error codes

Zanussi Air conditioners and split systems have long and firmly occupied their niche in the household appliances market. The popularity of air conditioners of this brand is explained by their reliability, efficiency and good engineering solutions. Zanussi equipment is able to serve without repair for a sufficiently long period, without causing problems to its owners.

Modern household appliances are usually equipped with a self-diagnosis system. It allows you to track the occurrence of failures and malfunctions in the equipment at the time of their occurrence. The self-diagnostic system is a network of sensors located on the main working units of the mechanism, and a display on which an error code is displayed when it is detected.

The self-diagnosis system of the Zanussi air conditioner in the event of errors in operation immediately displays their codes on the display installed on the indoor unit

Error codes that occur during the operation of the Zanussi air conditioner can be divided into two large groups:

• errors in the external block;
• errors in the indoor unit.

When the error code is displayed on the display, the indicators blink. Each type of malfunction is encrypted with its own original combination of indications.

The indoor unit of air conditioners and split systems of the Zanussi brand is equipped with a built-in display, which displays signals about the processes occurring during the operation of the equipment. The signals are supplied by the control module, which, in turn, receives information from the sensors.

When an error occurs, the control module displays the appropriate code indicating the type of problem. In addition, on the display panel of the indoor unit, the indicators begin to give light signals.

Error codes of the indoor unit of the air conditioner or Zanussi split system are sent from the sensors to the control module and displayed on the built-in display of the device

E2 - problems with the room temperature sensor. The Timer indicator flashes.

If there is a problem with the indoor temperature sensor, the control module does not receive reliable signals about the room temperature. As a result, the air conditioner will operate in constant cooling mode or not cool at all.

What to do:

• check the condition of the sensor with a multimeter. The part may not be connected, short-circuited or open-circuited;
• in case the sensor is not connected - connect or close;
• if the sensor is short-circuited, it must be replaced (complete information on the location and connection of the temperature sensor can be found in the wiring diagram).

After troubleshooting, the error is automatically cleared.

Most errors of the indoor unit of Zanussi air conditioners are associated with the failure of a sensor and are automatically removed after the problem is eliminated

E3 - problems with the air conditioner evaporator sensor. Accompanied by a flashing Running light.

The evaporator temperature sensor is responsible for timely shutdown of the compressor when the evaporator temperature drops to negative values. Failure of a part can lead to icing of the evaporator and its subsequent breakdown.

How to proceed:

• check the functionality of the part. The sensor may not be connected, short-circuited or open;
• if the part is not connected - connect or close;
• if the sensor is short-circuited, it must be replaced (complete information on the location and connection of the temperature sensor can be found in the wiring diagram).

After troubleshooting, the error is automatically cleared.

E5 - problems with the air conditioner condenser sensor. Accompanied by the defrosting indicator flashing.

The condenser temperature sensor is responsible for regulating the refrigerant pressure in the air conditioning circuit. Failure of a part leads to incorrect operation of equipment or its complete breakdown.

How to proceed:

• check the functionality of the part. The sensor may not be connected, short-circuited or open;
• in case the sensor is not connected - connect or close;
• if the sensor is short-circuited, it must be replaced (complete information on the location and connection of the temperature sensor can be found in the wiring diagram).

After troubleshooting, the error is automatically cleared.

If the indoor unit of the Zanussi air conditioner does not work correctly, you should inspect the temperature sensors located in the self-diagnosis system of the device

F2 - malfunction of the external unit. The Defrosting and Alarm indicators are flashing.

Several technical factors can influence the operation of the protection of the outdoor unit of the air conditioner. To eliminate the error, you need to check each of them.

How to proceed:

• check the phase sequence of the supply power;
• eliminate damage to pressure sensors;
• check the refrigerant pressure.

After troubleshooting, the error is automatically cleared.

F5 - problems with the drain pan sensor. Accompanied by the flashing of the Alarm lamp.

Failure of the drain pan sensor leads to overfilling of the pan with condensate, which in turn leads to incorrect operation of the air conditioner or split system, their damage and more complicated repairs.

How to proceed:

• check drain pipe, clean if necessary. Sometimes it is enough to simply lower the drainage a little;
• check the performance of the pump;
• check the performance of the sensor, it may not be connected, short-circuited or open;
• if necessary, connect or replace the sensor and pump.

After troubleshooting, the error is automatically cleared.

EI - communication error signal between the external unit and the internal part of the system. Accompanied by the flashing of the Running and Defrosting indicators.

This error occurs only in some models of Zanussi brand air conditioners, for example, Zanussi ZACC. The lack of communication between the units leads to a complete stop of the system.

How to proceed:

• check the connection of the interconnect cable;
• check the cable for breakage and damage;
• if everything is in order with the cable, check the functionality of the electronic boards of the outdoor and indoor units.

The error is not automatically cleared; after the problem is eliminated, you must disconnect and reconnect the system power.

When installing the external unit of the Zanussi air conditioner, it is very important to securely connect the interconnect cable in order to avoid a failure in communication between the external and internal units.

P6 - EEPROM error signal. The start and timer indicators (Timer and Running) flash.

An EEPROM error can be either an elementary failure that disappears when the equipment is restarted, or a sign of a malfunction of the electronic board of the indoor unit.

How to proceed:

•     disconnect from the network, turn on after 10 minutes. After reboot, the system will work normally;
•     if the system does not work, check the functionality of the electronic board.

The EEPROM error is not removed automatically after the failure is eliminated, in any case, it is necessary to turn off the power supply to the air conditioner and reapply it after a while.

When an error signal appears on the display of the equipment, the owner of the household appliance should immediately take up the elimination of the problem. Operation of a problem air conditioner can lead to its permanent breakdown.

Errors codes in the operation of the outdoor unit of the Zanussi air conditioner are signaled by flashing LEDs on the external device board.

Malfunctions in the outdoor unit of the Zanussi air conditioner are indicated by an indication on the electronic board using built-in LEDs

Most often, in the outdoor unit of the air conditioner, the indication turns on when the protection against one or another failure is triggered:

• blinks 4 times / 6sec - low pressure;
• blinking 3 times / 5 sec - high pressure;
• blinking 9 times / 11 sec - phase change;
• flashing 7 times / 9 sec - overcurrent;
• blinking 2 times / 4 sec - overheating of the external heat exchanger;
• flashing 1 time / 3 sec - defrosting;
• blinks 5 times / 7 sec - problems with the temperature sensor;
• blinking 8 times / 10 sec - EEPROM error.

All malfunctions in the external unit of the Zanussi compressor are fixed thanks to various temperature sensors.

Temperature sensors are responsible for blocking operation in the following nodes:

1. A decrease in pressure in the system is signaled by the gas line temperature sensor, which is a redundant low pressure sensor.
2. Exceeding the pressure norm is signaled by the compressor discharge temperature sensor.
3. The outdoor temperature sensor blocks the operation of the air conditioner when the outdoor temperature drops below the operating range of the system, provided by the technical parameters.

As in the case of an error in the indoor unit, the owner of the air conditioner should not ignore the alarm signals of the external unit of the system. When a signal appears about a malfunction in the outdoor unit, first of all, you need to pay attention to the sensors.

If there are signals about an error in the operation of the air conditioner for repair, it is recommended to contact a professional authorized service technician

How to proceed:

• check the performance of the parts. Sensors may not be connected, short-circuited or open-circuited;
• in case the sensors are not connected - connect or close;
• if the parts are short-circuited, they should be replaced (complete information on the location and connection of temperature sensors can be found on the wiring diagram of the device);
• if no faults are detected in the operation of the sensors, check the electronic board of the unit.