7.2 Examination Guide
Problem
Causes
Solution
The chain is noisy
The chain is too loose
Adjust nut-M8 referring to
6.1.1
The motor does not
work
The socket is well connected,
or the fuse is broken
Check the socket
Replace the fuse
After setting open
and close positions,
the motor does not
work
The screws of fixing the Hall
components are loose
Program mistakes
Tighten the screws
Resetting open and close
positions
The door can’t be
closed
Photo beam function works
Cancel the photo beam
function
The wall button works
well, but the
transmitter doesn’t
work
No transmitter learning
Transmitter battery is power off
Code referring to 6.3
Change new transmitter
battery
Too short of
transmitter distance
The transmitter battery is near
power off
Change new transmitter
battery
