Program The Travel; Test The Safety Reversal System - LiftMaster LM3800W Mode D'emploi

20

Program the Travel

Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system. After ANY
adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 40 mm object on
floor. To prevent damage to vehicles, be sure fully open door provides adequate clearance.
Travel limits regulate the points at which the door will stop when moving up or down.Unplug the garage door opener.
While programming, the UP and DOWN buttons can be used to move the door as needed.
1. Press and hold the Adjustment Button (A) until the UP Button (U) begins to flash and/or a beep is heard.
2. Press and hold the UP Button (U) until the door is in the desired UP position.
3. Once the door is in the desired UP position press and release the Adjustment Button (A). The garage door opener lights will flash twice and the
DOWN Button (D) will begin to flash.
4. Press and hold the DOWN Button (D) until the door is in the desired DOWN position.
5. Once the door is in the desired DOWN position press and release the Adjustment Button (A). The garage door opener lights will flash twice and
the UP Button (U) will begin to flash.
6. Press and release the UP Button (U). When the door travels to the programmed UP position, the DOWN Button (D) will begin to flash.
7. Press and release the DOWN Button (D). The door will travel to the programmed DOWN position. Programming is complete.
If the garage door opener lights are flashing 5 times during the steps for Program the Travel, the programming has timed out. If the cable tension
monitor is not installed or is sensing too much slack in the cable, the garage door opener light will flash 5 times. Ensure the cable tension monitor is
correctly installed then follow the steps for Program the Travel. If the garage door opener lights are flashing 10 times during the steps for Program
the Travel, the infrared photocells are misaligned or obstructed. When the sensors are aligned and unobstructed, cycle the door through a complete
up and down cycle using the remote control or the UP and DOWN buttons. Programming is complete. If you are unable to operate the door up and
down, repeat the steps for Programming the Travel.
21

Test the Safety Reversal System

Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door. Safety reversal system MUST be tested every month. After ANY adjustments are made, the
safety reversal system MUST be tested. Door MUST reverse on contact with 40 mm high object on the floor.
TEST
1. With the door fully open, place a 40 mm board on the floor, centered under the garage door.
2. Press the remote control push button to close the door. The door MUST reverse when it makes contact with the board.
ADJUST
If the door stops but does not reverse:
1. Review the installation instructions provided to ensure all steps were followed;
2. Repeat Program the Travel (see Adjustment Step 1 "Point 20");
3. Repeat the Safety Reversal test.
If the test continues to fail, call a trained door systems technician.
IMPORTANT SAFETY CHECK:
Test the Safety Reverse System after:
• Each adjustment of limits.
• Any repair to or adjustment of the door (including springs and hardware).
• Any repair to or buckling of the floor.
• Any repair to or adjustment of the garage door opener.
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