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Liftmaster® Model 2500 - Diagnostic Code Chart

Garage door openers are programmed with self-diagnostic capabilities. The diagnostic LED next to the learn button will flash a number of times, then pause before repeating, signifying it has found a potential issue.

Diagnostic Chart for Model 2500

CodeProblem
1Safety sensors misaligned or obstructed.
2Safety sensors shorted or wired incorrectly.
3Door control or wires shorted or not connected.
4Safety sensors intermittent.
5No RPM detected.
6RPM pulses detected after the motor was turned off forcing up travel (obstructed).
7Limits not learned yet.
 

See also: LiftMaster® Model 2500 Owner's Manual

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Liftmaster® Model 2500 - Diagnostic Code Chart