LiftMaster LA500UL Support Question
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Current Answers
Answer #1: Posted by SonuKumar on January 12th, 2023 8:56 PM
To troubleshoot a code 32, 33 or 4 or 8 yellow flash diagnostic on the A500, LA500DC, LA500U/UL, LA400DC, LA400U/UL, LA412DC, or LA412U/UL follow these steps: 32 or 4 flashes indicates the arm plugged into the Gate 1 plug is disengaged. 33 or 8 flashes indicates the arm plugged into the Gate 2 plug is disengaged.
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Sonu
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