The reason why the display light of the air conditioner keeps flashing is that it may be a hint of anti-mildew function. After the air conditioner is turned off, it will continue to work for a period of time until the water on the evaporator of the indoor unit dries. It could be voltage. If the power supply voltage is too low, the air conditioner will not start normally and will flash an alarm.
Check whether the external power supply has electricity or whether the voltage reaches the rated voltage.
This happens when air conditioners are used in winter, probably because the air conditioners are defrosting. When defrosting, the internal unit of the air conditioner does not work, but the compressor is still working. At this time, the indicator light will flash to remind the user that the air conditioner is defrosting. The air conditioner can be used normally after defrosting. If the air conditioner timer light flashes 15 times, the cause of the fault is that the single chip microcomputer is reset at the instantaneous breakpoint, and it needs to be stopped for 3 minutes to check and reset automatically. If the timer light flashes 12 times, the fault is caused by the outdoor heat exchange sensor temperature exceeding 70℃ during refrigeration. Please check the outdoor fan to see if the outdoor heat exchange sensor is too dirty.