1, check the power supply first.
The performance of Daikin air conditioner with power supply is that it will make a very crisp "beep" sound when it is powered on, and then the air conditioner power supply is normal, and then it depends on whether the air conditioner remote controller has a battery or whether the battery power is enough.
2. Check whether the connecting wire is broken.
It may be because the connecting wire between the indoor unit and the outdoor unit was bitten off by a mouse, so it can run normally after contacting the staff.
3. Don't maintain for a long time
Long-term maintenance will make the outdoor unit of air conditioner unable to operate normally, thus prompting un failure. It needs maintenance or cleaning before it can be used normally.
4. Excessive ambient temperature will lead to system protection.
If the ambient temperature is too high and the outdoor unit is poorly ventilated, the air conditioning heat cannot be blown out due to the veil or wall in front of the outdoor unit. If the temperature is too high, the compressor will automatically start protection, which can be solved by stopping using it for 30 minutes to an hour and restarting it.
5, the cause of the voltage rise
Check whether the voltage reaches the rated voltage. If the voltage is not low, please check whether the indoor and outdoor units are connected correctly, and whether moving the air conditioner causes line errors.
6. Check the communication between the internal machine and the external machine.
If the outdoor unit has power supply, the red indicator lights up and the outdoor unit does not start, it can be checked that the communication between the indoor unit and the outdoor unit is normal, otherwise there is a communication problem;
7. Due to insufficient operation of Freon.
The root cause of insufficient refrigerant. Solution: Add Freon to the air conditioner.
8. Hardware failure
If according to the above investigation, there is still un fault in Daikin air conditioner, then the hardware is damaged to a great extent, please contact personnel for on-site inspection.