38
Fault appearance
Fault cause
Solutions
No response
LCD screen is not bright
1. Power supply
2. Plug wire is loosing
1. Check whether the motor
socket is energized
2. Check whether Fuse tube
is broken
3. Check whether the low-
voltage wire of transformer
is connected to the power
board
4. Check whether the ribbon
cable is plugged
5. Check whether there is
26v AC at the transformer
low-voltage side, if there is
26v AC, replace the PCB. If
not, replace the transformer
Stop positions incorrect
System error
Re-set the limit traveling
While learning, the digital
display
Travel less than 30cm or
more than 9m
Re-set the limit traveling
Digital display
Insufficient voltage
Check the power supply
Opener does not work or stop
working
Digital display
The Garage door system is
in poor condition and needs
maintenance
The garage door and motor
need total maintenance.
Manual Release door and
check if operation loads
are acceptable. Correct or
continue to reset force limits
LED light will flash quickly for
10 times
Digital display
The gear motor cannot
self-lock well
Replace the gear motor
Opener is not working
Fail to learn the up and
down limit setting
Improperly learn the up and
down limit setting
Learn “UP” and “DOWN”
limit traveling again follow
the manual
Digital display
LED is always on
The control panel is broken
or the power supply board
is broken
Replace the control board or
power board
When remoting the door,
opener stops automatically
after running 10cm
Hall sensor wire is loosed or
damaged
Open the cover, check the
Hall sensor wire, re-plug or
replace.
Digital display
Opener does not work.
Hear the relay ‘kaka’ sound
The wire between gear
motor and board
is loosing
Open the cover and check
the wire between gear motor
and board
Digital display
Opener stops automatically
after running 10cm
The wire between gear
motor and board is plugged
inversely
Power off firstly, open the
cover and reverse the plug
wire between gear motor
and board. Re-set limit
traveling.
Digital display
COMMON FAULT & SOLUTIONS
Содержание 4DS2 v1
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