Chamberlain BG 3000-B3 Manual Do Utilizador

Rev E

Doc 01-20201

30 of 33

Units work as stand-alone:
1. 

Miswired or disonnected Master/Slave interconnect cable.

2. 

Improper Master/Slave switch S1 setting.

3. 

Bad Control board.

Improper Operator Pair setting.  See programming step 02, Operator Type.

One gate braking to stop causes a fault in the other (moving) gate:
1. 

Both units are wired to the same circuit breaker.

2. 

Undersized power wires.