LiftMaster SL3000UL3 Owners Manual - Page 34

BUILT-IN RESET SWITCH When the gate operator's audio alarm has been tripped (see below), the reset switch must be pushed for the operator to function again. The reset switch will shut off an activated audio alarm and reset the operator to function again. If the audio alarm goes off, always check the gate area for: • Obstructions in the gate path. • Damage to the gate and/or gate operator. Pressing the reset switch will stop a moving gate during a normal open/close cycle, like a stop button. The operator does NOT need to be reset after doing this. AUDIO ALARM The alarm could be tripped when one of the following happens twice consecutively, then the alarm will sound for 5 minutes or until the reset switch is pressed! Press the built-in reset switch to shut off alarm and reset operator (see above). The gate is TOO heavy. The gate is hitting a wall or vehicle. Debris is on the gate's track such as mud, rocks, dirt, etc. An externally wired entrapment protection device has been triggered twice (Photoelectric sensor blocked). The gate has one or more broken axles or wheels. 32 The gate wheel is off the gate rail.