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No red light on board

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Cause Solution
Operator is switched OFF Move switch to ON position
Unaligned H Sensor and red dot on disk Realign H Sensor and red dot on disk
H Sensor may not be close enough to red dot Push up H Sensor with your thumb, should be 1/16” away from red dot
Blown Fuse Replace fuse – located in tubular fuse holder connected to orange battery wire.
Bad top board Replace top board

Remote Control Batteries

The batteries used in our transmitters are shown below. They can be obtained at your local drug stores.
2-button transmitter
4-button transmitter
Replacement Battery = 12v 23A
keyless entry push pad
large wireless wall push pad commercial door opener
narrow wireless wall push pad
vertical push pad
Replacement Battery = 9v
push button door opener keychain transmitter
Replacement Batteries (2) =
3v 2016
push button door opener wireless wall touch pad
Replacement Battery =
3v CR123