Unit refuses to discharge battery — Check rocker switch and system settings

What does Unit refuses to discharge battery mean?

The system is not discharging the battery as expected. This is often due to a specific setting on the unit itself or within the system configuration.

• The physical rocker switch on the unit is set to 'Charger-Only'.
• System configuration in VEConfigure prevents discharging.
• Battery protection settings are preventing discharge.

Click steps to track your progress.

1. 1

   Physically check the rocker switch on the unit (e.g., MultiPlus-II's bottom) and ensure it is set to 'On' (I position), not 'Charger-Only' (II position).

2. 2

   Review the system's configuration in VEConfigure, particularly settings related to ESS mode and battery discharge.

3. 3

   Check the battery's parameters for any 'Discharge Current Limit (DCL)' that might be set to zero.

4. 4

   Verify that the ESS Relay test has completed successfully.

5. 5

   If the issue persists, consult the FAQ section regarding loads being powered by the grid (Q9) for further troubleshooting steps.