Charge Controller (MPPT) - Troubleshooting

Use this guide to address common issues, from power checks to error codes, ensuring your Victron MPPT Charge Controller stays efficient and reliable.

1. “My charge controller isn’t turning on. What should I check?”
   
   • Step 1: Check if the power light is on, indicating the device is receiving power.
   • Step 2: Inspect the connections to ensure the battery is securely connected to the terminal.
   • Step 3: Confirm the breaker is in the On position (PV).
   • Step 4: Use the VictronConnect App to check that the battery voltage meets the necessary level to power the controller.
2. “The charge controller isn’t detecting my solar panels. What might be the issue?”
   • Step 1: Confirm that the solar panel (PV) cables are securely connected according to the Quick Start Guide.
   • Step 2: Measure the panel voltage to ensure it’s within the MPPT’s input range.
   • Step 3: Check for correct polarity (positive and negative connections) to prevent setup issues.
   • Step 4: test the 6ft. extension solar panel cable by running a Continuity test.
3. “I’m seeing error codes on the Victron app. How do I fix them?”
   • Step 1: Open the Victron app and review any error messages displayed at the bottom of the screen.
   • Step 2: Follow the recommended troubleshooting steps in the app for each specific error code.
4. “Could my battery be causing issues with the charge controller?”
   • Step 1: Inspect the battery connections for any loose or damaged wires.
   • Step 2: Use the Victron App to measure battery voltage and confirm it’s within system requirements.
   • Step 3: Check that the battery’s charge level is adequate for proper operation.
5. What does the LED Light mean?

   • Overview of LED indications:

     
     

     Operation mode	Bulk LED	Absorption LED	Float LED
     Not charging 1
     Bulk1
     Absorption2
     Manual equalization (alternating blinking)2
     Automatic equalisation2
     Float2

1. • 1. The bulk LED will blink briefly every 3 seconds when the system is powered but there is insufficient power to start charging.

   • 2. The LED(s) might blink every 4 seconds indicating that the charger is receiving data from another device, this can be a GX device (ESS) or a VE. Smart Network link via Bluetooth

   Fault mode	Bulk LED	Absorption LED	Float LED
   The charger temperature is too high
   Charger over-current
   Charger or panel over-voltage
   VE.Smart networking or BMS issue
   Internal error, calibration issue, settings data lost, or current sensor issue.

2. “I’m experiencing network issues or device incompatibility. Could this be a firmware problem?”
   • Step 1: Open the Victron app and go to the firmware update section.
   • Step 2: If updates are available, download and install them, as they may resolve network or compatibility issues.