Charger indicates E16; internal metering or energy measurement error

Safety first: Isolate mains power before accessing internal metering components.

Step-by-step checks:

• 1. Check if charging still works: Determine whether the charger still delivers power or if E16 blocks charging entirely. Some models may allow charging with limited metering.
• 2. Compare readings: If charging is possible, compare the KEBA energy readings with an external meter or the building's main meter to see if they are plausible.
• 3. Inspect meter module: Open the housing and locate the internal energy meter or current sensor assembly. Check for loose connectors and signs of damage.
• 4. Reseat connectors: Disconnect and reconnect the meter module's data and power connectors to the main control board.
• 5. Configuration check: In the KEBA configuration, verify that the correct meter type and wiring configuration are selected.
• 6. Replace meter module: If E16 persists, replace the internal energy meter module or the current sensor assembly. If these are integrated on the main board, replace the main control board.

Accurate metering is important for billing and load management; verify readings after repair.