Rev Counter Board: Calculate the opening distance of the opener and solve the problem that your door cannot be opened correctly.
Please judge the fault location based on the buzzer sound: 3 beeps will be heard when the main arm is faulty, 4 beeps will be heard when the sub-arm is faulty.
Please sealing and draining during installation,avoid short circuit and failure to work caused by water ingress.
Description
Solve the problem that your door cannot be opened correctly. No need to find an engineer, you can replace it by yourself, easy to install.