LiftMaster SL585UL Installation Manual - Page 44
Troubleshooting Chart, SYMPTOM, POSSIBLE CAUSES, SOLUTIONS
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TROUBLESHOOTING Troubleshooting Chart SYMPTOM Operator does not run and diagnostic display not on. POSSIBLE CAUSES a. No power to control board b. Open fuse c. Defective control board Control board powers up, but motor does not run. a. Reset switch is stuck b. Stop button active or jumper not in place for stop circuit c. Open or Close input active d. Entrapment Protection Device active e. Vehicle loop detector or probe active f. Defective control board Gate moves, but cannot set correct limits. a. Gate does not move to a limit position b. Gate is too difficult to move c. Limits are set too close (slide gate applications only) Gate does not fully open or fully close when setting limits. Operator does not respond to a wired control/command (example: Open, Close, SBC, etc.) Operator does not respond to a wireless control or transmitter a. Gate does not move to a limit position b. Gate is too difficult to move a. Check Open and Close command input LEDs b. Stop button is active c. Reset button is stuck d. Entrapment Protection Device active e. Vehicle loop detector or vehicle probe active a. Check XMITTER LED when wireless control is active b. Stop button is active c. Reset button is stuck d. Poor radio reception Gate stops during travel and reverses immediately. Gate opens, but will not close with transmitter or Timer-to-Close. Gate closes, but will not open. Exit loop activation does not cause gate to open. Interrupt loop does not cause gate to stop and reverse. a. Control (Open, Close) becoming active b. Vehicle loop detector active a. Open control active b. Vehicle loop detector active c. Fire Dept input active d. Timer-to-Close not set e. Close Entrapment Protection Device active a. Vehicle loop detector active a. Exit vehicle detector setup incorrectly b. Defective Exit loop detector a. Vehicle detector setup incorrectly b. Defective vehicle loop detector SOLUTIONS a. Check AC power b. Check fuses c. Replace defective control board a. Check reset switch b. Check Stop button is not "stuck on", or verify that the stop button is a normally closed circuit, or put a jumper on the stop circuit. c. Check all Open and Close inputs for a "stuck on" input d. Check all Entrapment Protection Device inputs for a "stuck on" sensor e. Check all vehicle detector inputs for a "stuck on" detector f. Replace defective control board a. Use manual disconnect, manually move gate, and ensure gate moves easily limit to limit. Repair gate as needed. b. Gate must move easily and freely through its entire range, limit to limit. Repair gate as needed. c. Ensure the gate moves at least four feet between the OPEN limit and the CLOSE limit. a. Use manual disconnect, manually move gate, and ensure gate moves easily limit to limit. Repair gate as needed. b. Gate must move easily and freely through its entire range, limit to limit. Repair gate as needed. a. Check all Open and Close inputs for a "stuck on" input b. Check Stop button is not "stuck on" c. Check Reset button d. Check all Entrapment Protection Device inputs for a "stuck on" sensor e. Check all vehicle detector inputs for a "stuck on" detector a. Activate wireless control and check XMITTER LED is on. Re-learn wireless control/transmitter to control board. Replace wireless control as needed. b. Check Stop button is not "stuck on" c. Check Reset button d. Check if similar wired control operates correctly. Check if wireless controls works properly when within a few feet of operator. Check operator's antenna and antenna wire. Check other wireless controls or devices. a. Check all Open and Close inputs for an active input b. Check all vehicle detector inputs for an active detector a. Check all Open inputs for an active input b. Check all vehicle detector inputs for an active detector c. Check Fire Dept input d. Check Timer-to-Close (TTC) setting e. Check all Entrapment Protection Device inputs for an active sensor a. Check all vehicle detector inputs for an active detector a. Review Exit loop detector settings. Adjust settings as needed. b. Replace defective Exit loop detector. a. Review Interrupt loop detector settings. Adjust settings as needed. b. Replace defective Interrupt loop detector. 44