Describe the judgment and elimination method of sudden shutdown fault of split air conditioner durin

According to the reason, it can be dealt with as follows: 1Too little air passes through the outdoor heat exchanger, resulting in too high condensation pressure, increased compressor load, and overload protector jumping

The ventilation volume of the outdoor heat exchanger should be adjusted to increase. 2.If the condenser is too thick, it will also cause the condensing pressure to be too high, causing the compressor to shut down

Cleaning the objective external condenser ash deposit. 3.There is an obstacle blocking at the inlet and outlet of the condenser, resulting in too high condensation pressure and the contact of the overload protector jumping open

Remove obstructions from the condenser. 4.The speed of the condenser fan is too slow, resulting in insufficient air volume of the condenser, which makes the condensing pressure high and the overload protector jumps

Adjust the motor speed or replace the motor. 5.The condenser airflow is short-circuited, the circulating air volume is reduced, and the air cooling effect is poor

Find out the cause of the short circuit in the airflow and eliminate the blockage. 6.There is a heat source near the outdoor condenser, which affects the condensation effect, makes the condensation pressure too high, and causes the overload protector to jump away

Heat sources should be excluded. 7.The outdoor condenser has direct sunlight, which affects the condensation effect

A sun visor should be installed. 8.Too much refrigeration and too high condensing pressure cause the compressor to overload and shut down

Check the temperature of the refrigeration cycle and fill the refrigerant according to the regulations. 9.Non-condensable gas is mixed into the refrigeration system

Check the pressure in the system and remove non-condensable gases from the system. 10.The refrigeration pipeline is blocked, resulting in high condensation pressure and overload of the compressor and shutdown

Inspect the refrigeration pipes to remove blockages. 11.The indoor heat load is too large, and the air temperature inhaled by the indoor unit is too high

The heat load should be reduced. 12.The compressor overheats, and the overheat protector acts.

13.Compressor clamping. 14.

Compressor operating current is too large: Check the interphase voltage and whether the compressor is overloaded. 15.

The compressor motor is poorly insulated, causing the motor to burn out. 16.The compressor overload protector itself is faulty.

17.Poor lubrication of compressor bearings can cause bearing damage or jamming. 18.

The power fuse blows.

Dude, give it points, Sheila.

If the whole machine is shut down: 1, power failure, 2, circuit board failure, 3, leakage of the whole machine, 4, compressor stuck or short circuit of the operating capacitor.

Internal machine shutdown: During refrigeration, it must be that the internal fan is broken or the fan blades are stuck, the circuit board is faulty, and the external unit may not be able to start when heating, the system is fluorine-free, there is no heating temperature, the internal machine will not start, and the temperature sensing head may fail.

Hehe. The upstairs was searched on the Internet, and I didn't have any answers.

Answer 1: The temperature has reached the temperature you set.

Answer 2: The load is tripped over the ambassador switch.

Answer 3: The voltage is not enough.

Answer 4: The socket is broken.

Answer 5: The air conditioner is broken, call to wait.

The problem you mentioned is.

1. The wire of the sensor of the air conditioner was bitten off by a mouse.

2. Look at the tube temperature and the ambient temperature sensor is broken.

3 That's the power strip problem.

What is a sudden downtime!? Out of power? Still no hot air?

Is the outside plane stopped? Or is it an in-house machine?

There are many reasons for this, but the possible cause is the phenomenon of the compressor protection device tripping.

Compressor overload protection will trip to indicate that the system is over-pressurized, over-pressurized, or overheated, and the current is too high.

Causes and elimination of high pressure and overheating:

1. Too much refrigerant. Reduce the refrigeration dose appropriately.

2. Poor heat dissipation. Check the condenser pipe for dirt and dirt and clean the condenser.

3. The pipeline system is blocked. Refer to the pressure gauge to judge, eliminate, and re-process systematically.

4. Dust and fouling of the evaporator or filter screen. The airflow becomes smaller, the system pressure and temperature are unstable, and the evaporator or filter is cleaned.

5. Fluoride deficiency is also possible. When there is a lack of fluorine, the compressor discharge temperature will overheat, causing the overheating load protection switch to trip.

The problem with the circuit is that the sensitive chain is weak

1. Control circuit board failure.

2. The temperature sensor is overloaded and the information is wrong.

3. The power supply wiring is loose and the contact is poor.

4. The starting capacitor or compressor starting coil bridge is burned out.

The information is insufficient, it can only be analyzed in this way, and there are many other possibilities, it is recommended to find a professional maintenance personnel to check it.

Hope it can help you, satisfied. Thank you.

Through the return air temperature sensor of the indoor unit.

When the actual indoor temperature reaches the set temperature, the main control board collects a specific resistance value, and calculates and compares it through conversion, so that the main control board sends a shutdown command to the compressor relay or AC contactor, and the switch is disconnected and stops working.

The control program of the unit in the chip of the main control board is preset by the manufacturer when the product is designed.

The start and shutdown of the air conditioner is mainly realized by the sensing head of the air conditioner thermostat to detect the change in temperature.

Of course, in order to make the air conditioner operate normally, the following conditions need to be met, such as: the voltage must meet the standard requirements, that is, the voltage is not less than 198V, not higher than 242V;

The temperature range is generally -7° to 43°;

The size of the air conditioner should match the size of the room.