Diagnosis Led; Faqs - Chamberlain LiftMaster Professional CB124 Instrucciones

FAQs

Pressing P1, P2 and P3 does not show any reaction
The gate opener doesn't respond at all; no LED is
on.
Immediately after the gate has started moving, it
stops and reverses.
The gate opener does not open the gate fully.
Gate can only be opened
"Timer to close" doesn't work.
The control board does not work any more using
the transmitter, only with the switch and even then
only as long as a button is pressed and kept
pressed.
The gate opener doesn't respond at all, although
the controller has been connected (LEDs are on).
Control board does not work with transmitter
The remote control's range is too short.
The gate must follow a slope.
The gate post is so thick that I am unable to
comply with the requisite A+B dimensions.
Travel distance can't be programmed.
The operator sometimes movess slowly
Possibly power failure.
Obstacle in area of gate.
1. Are the post dimensions A+B correct?
2. Has the travel of the controller been set
correctly?
1.photocell blocks
1.A safety photocell, a contact strip or the
stop disables the control board
2.Only one photocell was connected for
OPEN
1. Remote control has not been programmed.
2. LEDs indicate a fault.
3. Photocell connected incorrectly.
4. Motor terminal possibly not connected
properly.
1. transmitter not programmed
2. A photocell blocked
The installation of an external aerial is recommended as the controller with the short cable
aerial is located either behind the post or near ground level in most cases. The optimum
location of the aerial is as high as possible in all cases. An appropriate aerial with installation
kit can be obtained from Chamberlain as an accessory.
Not recommended! Change gate! The gate can move in an uncontrolled (dangerous) manner if
the gate opener has been released. A stronger force is needed in the upwards direction of the
slope and then, in the opposite direction, the gate opener's force is too strong.
Reduce post thickness or shift gate location.
1. Jumper setting not correct
2. Motor wiring not correct or cable broken
3. Diagnostic LED
4. Electric noise in wiring disturbs
5. Gate moves for 1 second only and stops
without reversal during programming
6. ART only: Passpoint adjustment incorrect
7. ART only: Motor disengaged
Powerfailure
Jumper "RADIO" must be removed
Check whether the radio module is
seated correctly.
1. Check conductor and zero conductor.
2. Check house fusing.
Check gate area for objects
check wiring of motor (LYN/SCS)
1. Check A+B dimensions.
2. Reprogram if required
1.Function and connection must be
checked
1. Only works if the 2-cable photocell
770E(ML) or 771E(ML) has been
installed.
Check diagnostic LED
1. Programming remote control.
2. Find and rectify fault(s) (see description of
diagnostic LEDs).
3. Check photocell connection / programming.
4. Check terminals and connections.
1.Program transmitter
2.Check photocells, check diagnostic LEDs
3. Jumper "RADIO" must be plugged.
1. Check manual, especially "1/2 Motor"
2. If motor is moving check brown,
green, white, yellow cable. Test with
different cable to exclude that the
defect is the cable in the ground.
Or connect for testing the motor
direct to the control board without
extension cable.
3. Check diagnostic for route cause.
4. Refer to solution 2 and if applicable
change wiring type or routing. Verify
wiring with manual recommendation.
5. Not enough electrical power (volts) or
bad wiring. Refer to solution 2.
6. Adjust passpoint cams in motor.
Refer to ART manual.
7. Engage motor. Refer to ART manual.
Common procedure. After powerfailure the
operator performs a selftest. Depending on
the operator model this can take a few
seconds or a complete cycle (SUB). Do not
interrupt this test via remote control or switch,
otherwise the limits may change. If this is the
case reprogram travel distance using P1.