Charger displays E07, RFID card or app command is accepted but charging does not start, internal relay click may be absent.

Safety first: High currents are present in the output stage. Only qualified personnel should open and service the power module. Isolate at breaker and verify de‑energized.

• 1. Check for obvious damage:
  • Open the charger housing and visually inspect the power module and surrounding area.
  • Look for burn marks, cracked components, or blown fuses.
• 2. Inspect output wiring:
  • Verify that the connections from the main contactor to the tethered cable or socket are secure.
  • Check for signs of overheating at terminals.
• 3. Test internal fuses:
  • Locate any serviceable fuses on the power board.
  • Test continuity with a multimeter and replace only with identical rated fuses if blown.
• 4. Attempt a controlled restart:
  • After inspection, reassemble and power cycle the charger.
  • Try a short test charge with a low‑current setting if configurable.
• 5. If E07 persists:
  • The power module or current sensor is likely defective.
  • Replace the power module assembly or complete main board per Heidelberg service documentation.