Most of your cases are remote control receiver chips, decoding part of the chip, anti-interference ability is not good, the motor is inductive load, once started, it will cause ripples in the power supply circuit, and the motor will produce some electromagnetic interference, but according to my experience, the electromagnetic wave interference by the motor itself is very little, most of the receiver chips, The decoding chip or MCU power supply filter is not done well, the power supply ripple is large, the chip can not accurately decode the received signal, and the remote control does not respond or the remote control distance is very short. It can be opened by remote control, the distance is normal, and the motor is closed without control after working.
The solution is that the remote control part is powered by a DCDC isolation module, the remote control output drives the relay, and the contact of the relay is used to control the motor.
Otherwise, it is necessary to replace the receiving head, such as the frequently used 433 frequency, the ordinary receiving module is 2,3 yuan, but the motor fails as soon as it works, and the receiving head made by the chip with better anti-interference is about 15 yuan. There's still a big cost difference.