# of flashes
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2
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6
Rapid Flashing
Problem
The Protector System wire open or totally misaligned
The Protector System wire shorted or black/white wire reversal
Door Control or Multi-Function control Panel wire shorted
IR sensor slightly misaligned (dim or flashing sensor LED)
Motor overheated/Possible RPM sensor failure -- unplug to reset
Motor circuit failure -- replace RX/LX board
Liftmaster transmitter with the correct format code being received
(opener not necessarily programmed to respond)
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