How do I tell if my solar is working?

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⚡ 1. Check the Solar Controller (Charge Controller)

Locate your solar charge controller (often in a cabinet or electrical bay).
It should display:
- Current voltage from the solar panels (typically 18–22V when sunny)
- Charging status (bulk, absorb, float)
- Amperage going to the batteries
- If it’s dark or covered, it will show zero or idle.
- ➡️ If the screen is blank or showing zero volts/amps during full sun, your system may not be functioning.

🔋 2. Check Battery Voltage Over Time

Use your RV monitor panel or a multimeter to track house battery voltage.
With sunlight and no big loads, voltage should slowly rise above 13V.
If it's stuck around 12.3V or lower all day in full sun, the solar isn't charging.

🧪 3. Shading & Panel Inspection

Inspect the solar panels on the roof for:
Cleanliness (dirt blocks power)
Cracks or damage
Shading from AC units, vents, or trees
Even small shadows can significantly drop output.

🔌 4. Test Using Load

Disconnect from shore power and turn off the generator.
Run a moderate DC load (like lights or fan).
Watch to see if your charge controller shows current flowing into the batteries (amps increasing).
If yes, solar is doing its job.

🧰 5. Fuses and Wiring

Check for blown fuses or tripped breakers between the panels and the controller.
Inspect wiring for corrosion or damage.