LiftMaster SL585UL Installation Manual - Page 40
TROUBLESHOOTING, Diagnostic Codes
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TROUBLESHOOTING To protect against fire and electrocution: l DISCONNECT power (AC or solar and battery) BEFORE installing or servicing operator. For continued protection against fire: l Replace ONLY with fuse of same type and rating. Diagnostic Codes To View the Codes The codes will show on the diagnostic display. The operator will show the code sequence number followed by the code number: To Scroll Through the Saved Codes To Exit Press and release the STOP button to exit. The display will also time out after two minutes of inactivity. To Reset the Code History 1. Press and hold the STOP button for six seconds. The display will show "Er" then "CL" alternately for six seconds. 2. Release the STOP button. The code history has now been reset and the display will show "- -" until a new code occurs. 3. Press and release the STOP button to exit. The operator will only keep track of up to 20 codes, then will start saving over the oldest codes as new codes occur. 40