OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › 3.0 AC board always on › Reply To: 3.0 AC board always on
July 6, 2018 at 3:44 pm #50978
I can’t clearly see how the through-hole triacs are soldered onto the SMD pads, but I suspect that’s the source of the problem. You should carefully check the pins of your through-hole MAC97:
and the pins of the BT1308W SMD triac:
and make sure that you are soldering corresponding pins. As is I feel maybe some pins are swapped causing the problem.