HWH Issue

[davidbrady]

Hi Al,

Glad you were able to track it down. I think you're going to have to either deliver the bus or the entire box to HWH in Moscow. I looked at detailed pics of the control boards and I think the failure could be on any of the boards. The 12V battery power is distributed to the entire box. I would think there'd be some input voltage conditioning and some DC to DC conversion to 5V for the electronics but I can't identify any. I'd also think there'd be some surge protection circuitry but again from my pics I can't identify any. Once in touch with HWH I'd ask them about voltage conditioning and surge protection. Maybe they can add some varistors or filtering. I do see the big blue can to the left. That looks like a large capacitor. This could be the extent of their voltage conditioning. I'd like to see more given the number of similar failures we've seen and considering the inconvenience and the expense that owners face.