What does it mean that the CTL air conditioner will display E丨 when it is turned on?

Automatic protection when the voltage is too low. Detection method: The speed of the compressor, the pressure detection value of the high-pressure sensor and the low-pressure sensor are detected by the control p-plate, and the theoretical current value of the compressor calculated according to the detected parameters is compared with the actual current value detected by the power transistor.

Causes of Daikin air conditioner failure: compressor failure; High voltage sensor failure; Faulty low-pressure sensor; Control P-board failure; The inverter P board is faulty.

E1 Failure: Indoor Temperature Sensor Failure! The reason is that the sensor is bad, the temperature head resistance value is abnormal, the sensor plug is not in good contact, and the circuit board is bad, so it is best to find a professional master to check it!

This is a fault alarm signal, and the alarm information needs to refer to the equipment manual.

Generally, when we turn on the air conditioner, this one is displayed, and there is a string of numbers behind it, which is just the display of our current temperature.

This failure is a drainage system problem.

You can check the manual and see what the reason is?

1. The phase sequence current of the outdoor unit causes the protection circuit board to be broken.

2. Too much freon is added to cause the high-voltage protector to be disconnected.

3. The outdoor fan is broken, and the fan of the air conditioner does not rotate, resulting in the disconnection of the protector.

4. The outdoor unit accumulates too much dust and is too dirty, resulting in overheating protection of the air conditioner.

5. The machine has been used for too long, there is refrigerant leakage inside the refrigeration system, and the refrigerant or compressor has been replaced after treatment is not paid attention to, and the foreign matter enters the refrigeration system, which causes capillary blockage and cannot achieve throttling, cooling and pressure reduction. As a result, the high pressure of the air conditioner is too high, the low pressure is too low, and the pressure protector is disconnected.

e: The outdoor unit is abnormal.

1. Check whether the winding resistance value and operating current of the compressor are normal.

2. Check whether the high and low pressure pressure of the unit is normal during operation.

3. Check whether the wiring is in good contact with the plug-in on the circuit board (whether the tube temperature sensor is normal), whether the tube temperature sensor is firmly fixed, whether the evaporation of the indoor unit is good, and whether the pipeline temperature detected by the tube temperature sensor reaches the refrigeration or heating temperature.

4. Check whether the surface of the condenser is too dirty, and clean it if it is too dirty.

5. Check whether the capacitors of outdoor motors and fans are damaged or failing. Replace if damaged.

6. If the above is normal, replace the electric control board.

Answer: Hello, friend, I'm glad to answer for you, the E on the circuit board of the air conditioner indicates that the outdoor unit is abnormal, it is recommended to check whether the compressor winding resistance value and operating current are normal; Check whether the high and low pressure of the unit is normal during operation; Check whether the surface of the condenser is too dirty, and clean it if it is too dirty; If the above is normal, check whether the outdoor motor, fan capacitor, and electric control board are damaged or invalid, and replace them if they are damaged.

When overhauling, don't forget to check whether the pipe temperature sensor and wiring are in good contact with the plug-in on the circuit board, whether the tube temperature sensor is firmly fixed, whether the indoor unit evaporation is good, and focus on checking whether the pipeline temperature detected by the pipe temperature sensor reaches the cooling or heating temperature.

What does it mean for the air conditioner to show e0.

E0 means compressor low pressure protection. The reason why it appears and how to fix it:

Step 1: Determine whether the ambient temperature is too low.

Step 2, to determine whether it is a control fault or a system fault, you can first short connect the LPP plug on the main control board and the neutral line N on the motherboard, if the indoor unit is running normally, you can determine that the main board or display board of the indoor unit is fine, and the fault appears on the indoor and outdoor unit connection wires, plug joints or low-voltage switches of the outdoor unit.

Step 3, the external machine connection wire and plug, adjust the multimeter on the ohm block, connect a meter pen to the unplugged LPP protection line on the motherboard, and connect the other meter pen to the zero line N, if the resistance value is 0, it means that the fault is on the low-voltage switch, otherwise it is a line problem.

The fourth step is to determine whether the system is leaking fluorine or clogging through the pressure gauge.

e means malfunction. e should be followed by a number to indicate the fault of **. If there is a fault in use, it is necessary to find a repair as soon as possible.

That's a malfunction**, which means that the air conditioner is faulty. You should contact the after-sales service for maintenance in time.

It is to protect, to repair or maintain. What is a fault is displayed**.

It means that the high-voltage protection caused by the communication between the indoor unit and the outdoor unit is faulty.

E1 is the fault of the air conditioner** (compressor overcurrent protection, compressor overheating protection, outdoor unit exhaust temperature too high protection, outdoor unit phase sequence current protection circuit board is broken).

The reasons for the failure are as follows:

1. Freon multi-cause the action (disconnection) of the high-voltage protector.

2. The machine has been used for too long, there is a leakage inside the refrigeration system, and the refrigerant is often added or the compressor is replaced after treatment, and the dirt enters the refrigeration system and causes capillary blockage, which can not achieve throttling, cooling and pressure reduction. Pour until the high pressure of the air conditioner is too high, the low pressure is too low, and the pressure protector is activated (disconnected).

3. The outdoor fan is broken (note: the capacitance of the fan is broken, and the fan does not move), does not rotate, and pours to the protector action (disconnection).

4. The phase sequence current protection circuit board of the outdoor unit is broken.

5. The outdoor condenser accumulates too much dust and dirt, which leads to overheating protection of the air conditioner.

Treatment: It is necessary to clean the condenser of the outdoor unit of the air conditioner, and it is recommended to find a professional to clean it.

Air conditioning failure**.

E1 system high voltage protection.

E2 internal freeze protection.

E3 system low voltage protection.

E4 compressor exhaust protection.

E5 low-voltage overcurrent protection.

E6 communication failure.

E7 mode conflict.

E8 High Temperature Protection.

E9 protection against cold drafts.

F1 is open at room temperature and short-circuited.

F2 inner tube temperature open, short circuit.

F3 The outer ring is warm-on, short-circuited.

F4 condenser tube temperature open, short circuit.

F5 The outer exhaust pipe is open and short-circuited.

H1 defrosting. H2 Electrostatic precipitator protection.

H3 compressor overload protection.

H4 system abnormality.

H5 module protection Gree air conditioner maintenance.

FC Sliding Door Failure.

e: The outdoor unit is abnormal.

1.Check whether the winding resistance value and operating current of the compressor are normal.

2.Check whether the high and low pressure of the unit is normal during operation;

3.Check whether the wiring is in good contact with the plug-in on the circuit board, whether the tube temperature sensor is firmly fixed, whether the evaporation of the indoor unit is good, and focus on checking the tube temperature sensing.

4.Check whether the surface of the condenser is too dirty, and clean it if it is too dirty;

5.Check whether the capacitors of outdoor motors and fans are damaged or failing. Replace if damaged.

The air conditioner displays the letter E usually indicates a malfunction or error state. The exact meaning depends on the brand and model of the air conditioner. Here are some common possibilities:

1.Power failure: The air conditioner displaying the letter E may mean a power failure.

This can be caused by a loose power cord, a faulty outlet, or a faulty electrical circuit. Check that the power cord is properly connected and make sure the outlet is working properly. If the problem persists, you may need to seek professional technical support.

2.Temperature sensor let bypass fail: The letter E sometimes indicates that the temperature sensor is faulty.

The temperature sensor is responsible for monitoring the indoor ambient temperature and sending signals to the air conditioning controller. If the sensor is faulty, the air conditioner may not be able to read the temperature accurately, resulting in an incorrect display. In this case, it is necessary to contact the air-conditioner manufacturer or a professional technician to repair or replace the sensor.

3.Overload Protection: Some air conditioner models will display the letter E when overloaded.

Overload can be caused by the use of too many electrical equipment, such as the simultaneous use of high-power appliances such as electric heaters, induction cookers, etc. The solution is to reduce the load and ensure that the equipment is used within the rated power range.

In conclusion, the air conditioner displaying the letter E usually indicates a faulty or error state that needs to be carefully checked and resolved accordingly. If the problem cannot be solved, it is recommended to contact the air conditioner manufacturer or professional technician for further service and repair.

If "cool" is displayed, it means that the air conditioner is in a refrigeration state, and it is generally to switch the operation mode, and switch the operation mode with one key until you see the cold word. If it still doesn't work, remove the remote's battery and reinstall it after two minutes.

1. Supplement: The drying function of the air conditioner is to condense and drain the water in the refrigeration space on the evaporator (indoor unit) when the air conditioner is refrigerated, so as to achieve the purpose of drying.

2. Drying auxiliary hot key:

1. This is two functions, press the left side is the drying function, use refrigeration to prevent the water slag of the condensation evaporator, so the smell of the air conditioning mold, press the right side is the auxiliary heat key, and the electric auxiliary heating device heats the control switch, and at the same time, the remote control will display the switch.

2. The drying auxiliary heat key is about 1200w auxiliary electric heater for the machine set up in the control room, the purpose of which is to quickly reach the set heating temperature, generally when the indoor temperature reaches the auxiliary electric heater should be turned off. Click on the "Mode" button and select the mode you want. Or click the "e-Share" button again and it will jump back to automatic mode.