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tteam asked

MPPT 75/10 Blue light blinking and not charging

New solar panel installed on RV- 75-10. Blue light on controller blinks every three seconds and the manual says this is because the panel isn’t charging. What is wrong? RV has been in sun for two days. @Tteam

MPPT Controllersbattery chargingled
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Murray van Graan avatar image Murray van Graan commented ·

Could you provide more info please like

Panel and battery voltages

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JohnC answered ·

You'll need to see the Panel V. Also check wiring polarity and continuity.


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tteam answered ·

Not sure about the panel, that was just installed by camping center. Battery voltage reads 12.47 V. We are new to all of this.

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