LiftMaster CSW24VDC CSW24VDC Installation Manual - Page 41

TROUBLESHOOTING TROUBLESHOOTING CHART continued... SYMPTOM POSSIBLE CAUSES Exit loop activation does not cause gate to open. a) Exit vehicle detector setup incorrectly b) Defective Exit loop detector c) Low battery with LOW BATT option set to CLOSE Interrupt loop does not cause gate to stop and reverse. a) Vehicle detector setup incorrectly b) Defective vehicle loop detector c) Anti-tail set to ON Shadow loop does not keep gate at open limit. a) Vehicle detector setup incorrectly b) Defective vehicle loop detector Obstruction in a) Force adjustment needed gate's path does not cause gate to stop and reverse Photoelectric sensor does not stop or reverse gate. a) Incorrect photoelectric sensor wiring b) Defective photoelectric sensor Edge Sensor does not stop or reverse gate. a) Incorrect edge sensor wiring b) Defective edge sensor Alarm sounds for 5 minutes or alarm sounds with a command. Alarm beeps three times with a command. a) Double entrapment occurred (two obstructions within a single activation) a) Low battery SOLUTIONS a) Review Exit loop detector settings. Adjust settings as needed. b) Replace defective Exit loop detector. c) Check if AC power is available. If no AC power, then running on batteries and battery voltage must be 23.0 Vdc or higher. Charge batteries by AC or solar power or replace batteries. a) Review Interrupt loop detector settings. Adjust settings as needed. b) Replace defective Interrupt loop detector. c) Set anti-tail to OFF. a) Review Shadow loop detector settings. Adjust settings as needed. b) Replace defective Shadow loop detector. a) Refer to the Adjustment section to conduct the obstruction test and perform the proper force adjustment that is needed. a) Check photoelectric sensor wiring. Retest that obstructing photoelectric sensor causes moving gate to stop, and may reverse direction. b) Replace defective photoelectric sensor. Retest that obstructing photoelectric sensor causes moving gate to stop, and may reverse direction. a) Check edge sensor wiring. Retest that activating edge sensor causes moving gate to stop and reverse direction. b) Replace defective edge sensor. Retest that activating edge sensor causes moving gate to stop and reverse direction. a) Check for cause of entrapment (obstruction) detection and correct. Press the reset button to shut off alarm and reset the operator. a) Check if AC power is available. If no AC power, then running on batteries and battery voltage must be 23.0 Vdc or higher. Charge batteries by AC or solar power or replace batteries On dual-gate system, incorrect gate opens first or closes first. Alarm beeps when running. a) Incorrect Bipart switch setting a) Expansion board setting b) Constant pressure to open or close is given a) Change setting of both operator's Bipart switch settings. One operator should have Bipart switch ON (operator that opens second) and the other operator should have Bipart switch OFF (operator that opens first) a) Pre-warning is set to "ON" b) Constant pressure to open or closed is given Expansion board function not controlling gate. Maglock not working correctly. a) Defective main board to expansion board wiring b) Incorrect input wiring to expansion board c) Defective expansion board or defective main board a) Maglock wired incorrectly a) Check main board to expansion board wiring. If required, replace wire cable. b) Check wiring to all inputs on expansion board. c) Replace defective expansion board or defective main board a) Check that Maglock is wired to N.C. and COM terminals. Check that Maglock has power (do not power maglock from control board accessory power terminals). If shorting lock's NO and COM wires does not activate Maglock, then replace Maglock or Maglock wiring (refer to Wiring Diagrams). 40