LED on control board is off

[mtwarren]

Hi,
Hoping someone can help. I've replaced and installed a new set of photocells on my BFT Deimos bt gate.
Then turn on the power, but it doesn't work, as the LED display on the control board is off. The LED display was working before I've installed a new set of photocells.
I've checked the main fuse and power wire connections with a multimeter that there is no open circuit.
Any suggestions on how to fix this LED fault?
Thank you in advance for any help.

Arthur

Hi Arthur, I wonder if you had any luck with this? We have exactly the same problem! Thanks so much for any advice you can offer