LiftMaster SL585UL Installation Manual - Page 41
Diagnostic Codes Table, Meaning, Solution, Saved
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TROUBLESHOOTING Diagnostic Codes Table Some codes are saved in the code history and some are not. If a code is not saved it will briefly appear on the display as it occurs, then disappear. LiftMaster System Installed System Informational External Entrapment Protection Inherent Entrapment Protection Code 31 35 36 37 43 44 45 46 47 50 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 Meaning Main control board has experienced an internal failure. Max-Run-Time Exceeded Error Product ID Error Product ID Failure Exit Loop Error Shadow Loop Error Interrupt Loop Error Wireless edge battery low Power board fault Run-Distance Error Brownout occurred Wireless Second Operator Communication Error System AC Overvoltage System AC Undervoltage Limit Error - Stuck Switch Limit Error - Wrong Switch Missing Power Board Minimum number of monitored entrapment protection devices not installed. CLOSE EYE/INTERRUPT held more than 3 minutes CLOSE EDGE held more than 3 minutes OPEN EYE/EDGE held more than 3 minutes CLOSE EYE/INTERRUPT held more than 3 minutes CLOSE EYE/EDGE held more than 3 minutes OPEN EYE/EDGE held more than 3 minutes Wireless edge triggered more than 3 minutes Wireless edge loss of monitoring Wireless edge triggered Solution Disconnect all power, wait 15 seconds, then reconnect power (reboot). If issue continues, replace main control board. Check for an obstruction, then reprogram the limits. Was the control board just replaced? If so, erase limits, enter limit setup mode and set limits. If not, disconnect all power, wait 15 seconds, then reconnect power before changing product ID harness. Unplug product ID harness then plug back in. Disconnect all power, wait 15 seconds, then reconnect power before replacing product ID harness. Failure or missing loop (SHORT or OPEN - LiftMaster Plug-in Loop Detector only) Check loop wiring throughout connection. May be a short in the loop, or an open connection in the loop. Replace batteries in wireless edge. Relay fault detected in the power board. Replace the power board. The limits are less than the minimum requirement or longer than what was learned. Check limit positions and proper switch function. Rundistance can be re-learned by setting the handing again. AC/DC board supply dipped below allowable level. Review power supply and wiring. If rebooting, ensure enough time for discharge of power to force a fresh boot. Check the second operator for power. If OFF, restore power and try to run the system. If powered, deactivate the wireless feature and then re-learn the second operator. Call utility. Check wiring and wire gauge to operator. Check switch for proper operation. Check harness for shorts. Replace if defective. Check motor wiring. Check harness for shorts. Check for presence of power board. Review monitored entrapment protection device connections. Slide gate operators require a minimum of two external safety devices; one in the close and one in the open direction. Check wired input on main control board; check for alignment or obstruction. Check wired input on expansion board; check for alignment or obstruction. The photoelectric sensors may be installed too far apart. Check wired input for wiring issue or obstruction. Check wireless edge inputs. IF an obstruction occurred, no action required. If an obstruction did NOT occur, check inputs and wiring. Saved NO YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES YES NO 41