Apollo 636 gate opener will not close

I have to remember to read everything 4 times! the diagram shows 2 different settings, not master and slave side! both sides are wired the same and wired either pull or push.

Hi, I’m having a similar concern
my gate will not initiate closing. I can push and hold the “LED enable switch” and the gate switch will works and it close and reopens the gate. When the “LED enable switch” is held, the “master open” led comes on until the gate starts to move, when I push the switch to activate it
it cuts off
led D166 at the bottom flashes on and off
when the gate is fully closed 
the “master close” noes NOT come on at all? [Then, without holding the The LED enable, the switch will open the gate.]
but I cannot close the gate without holding the LED Enable switch down
 thoughts? Do I need a new board? Thanks in advance for your help!!