Thor Forums

[lo-tek]

Mine isn’t. The controller always shows the moon symbol meaning it’s not seeing sunlight and the voltage as read from the app and the controller shows .7v.

It looks like we have Grape Solar GS-PWM-40BT controllers coupled to a 100w panel on the roof. I’ve emailed Grape tech support and learned a few things. First, I’m getting about 19 to 20 v from the panel leads that come into the controller. I see battery voltage and power to the controller coming from the batteries. I’m having a hard time tracing from the controller to the battery bank, primarily because it gets lost in a bunch of wiring looms and is not directly connected to the batteries.

Has anyone else looked at this or noticed their charge controller always shows the panels not in direct sunlight? I would expect to be able to disconnect shore power and run my fridge via inverter and see some activity on the controller indicating it’s trying to keep the batteries up.