LiftMaster CSL24ULWK Instructions - Page 5

Troubleshooting Symptom Obstruction does not cause the gate to reverse Gate does not move Solid Red LED Blinking Blue LED Blinking Red LED Red/Blue LEDs blinking together Red/Blue LEDs alternate blinking Possible Cause 1. Using incorrect reflector 2. Reflector is mounted horizontally 1. Minimum number of entrapment devices not installed 2. Sensor is obstructed 1. Sensor is not properly aligned 2. Sensor is too far from reflector 3. Reflector or sensor lens is dirty 4. Object is obstructing beam 5. Condensation on reflector or sensor lens 1. Sensor is not optimally aligned 2. Sensor is too far from reflector 3. Reflector or sensor lens is dirty Incorrect wiring or over voltage Internal memory fault Internal fault Solution 1. USE THE PROVIDED REFLECTOR ONLY. 2. Reflector MUST be mounted vertically 1. Review sensor connections. Slide gate operators require a minimum or two devices; one in the close and one in the open direction. 2. Check for obstructions. 1. Align the sensor until the blue light is solid 2. Decrease the distance between the sensor and reflector 3. Gently clean the sensor and reflector with a soft damp towel 4. Remove any objects obstructing beam 5. Gently clean the sensor and reflector with a soft towel; make sure sensor heater is connected. 1. Align the sensor until the blue light is solid 2. Decrease the distance between the sensor and reflector 3. Gently clean the sensor and reflector with a soft damp towel Check for proper connection of sensor wiring. Disconnect all power, wait 15 seconds, then reconnect power. If issue continues, replace sensor. Disconnect all power, wait 15 seconds, then reconnect power. If issue continues, replace sensor. Accessories LMSGBP: Photoelectric sensor gang box plate LMEHUL: Photoelectric sensor extended hood APOW1: Plug in transformer K41-39254: Reflector, bracket, and hardware Warranty LiftMaster® warrants to the first consumer purchaser of this product that it is free from defect in materials and/ or workmanship for a period of 2 years from the date of purchase. NOTICE: This device complies with Part 15 of the FCC rules and Industry Canada's license-exempt RSSs. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules and Industry Canada ICES standard. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help.