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ChemTutor
Explorer
Oct 22, 2014

Repaired Samlex inverter not working at night

Howdy, All!
We just started full-time RVing a few months ago and installed two solar panels along with all the peripheral gadgets that go into a solar system. Our 3000watt Samlex inverter was repaired (replaced fuses and a capacitor) and works like a champ when we are drawing amperage during daylight hours. However, as soon as the amperage/current stops at night, so does the juice to our outlets. Batteries are at 81%, so that's not the problem. The only difference from day to night is no current from the panels, of course. I am extremely ignorant of all this, so thought I would post the problem to the experts out there in the RV world. Is it something as simple as not having a switch flipped the right way??? Duh!
Thanks in advance for any help and advice.

11 Replies

  • After solar goes dark, the battery voltage goes down too not just the current from solar.

    The inverter needs voltage from the battery to work and has a low voltage shut off. If your wires from inverter to battery are not fat enough for their lengths, or if you don't have enough battery to hold the voltage up with that inverter draw when the battery is starting out at less than full (which it acts more like full with the solar backing it up in the daytime) then you will go below that voltage shut off when trying to run big things off the inverter.