1. Why is my CITA Pro 22 kW charger not delivering maximum charging power?

• To deliver the full 22 kW output, the charger must be connected to a three-phase AC supply and the EV must support 22 kW AC charging.
• If charging is limited to 7.4 kW or 11 kW, it is usually because the vehicle does not support 22 kW, the site has only single-phase or partial three-phase power, load balancing is active, or the charging cable is rated for lower current and the charger is limiting power for safety.

2. What does it mean if the charger LED is solid red or flashing red?

• A red LED indicates a serious fault condition.
• This may be caused by grid issues such as over-voltage, under-voltage, frequency problems, DC leakage, or internal conditions like overheating.
• Restart the charger by switching the incoming MCB OFF and then ON. If the red LED remains, connect the charger online and contact technical support.

3. Why does charging begin and then stop within a few seconds?

• This usually happens when charging conditions are not met or a control setting interrupts the session.
• Check that scheduled charging is disabled in both the charger app and the vehicle, verify that input voltage and earthing are within limits, and restart the charger.
• If the issue continues, contact technical support.

4. What should I do if the charger cannot connect to Wi-Fi or a wired network?

• Check that the Wi-Fi signal is strong or the Ethernet cable is properly connected. If DHCP does not work, try configuring a static IP.
• Make sure your firewall allows charger communication ports.
• Restart the router and charger, then connect the charger in AP Mode and reconfigure the network settings.
• Contact technical support if the issue persists.

5. Why does the charging connector fail to lock into my EV?

• The locking pin may be misaligned or stuck.
• Inspect the connector for dust or debris and clean it if required.
• If the charger flashes red with a beep during the locking attempt, service support is needed.

6. What causes the CITA Pro 22 kW charger to restart on its own?

Random reboots are commonly linked to unstable power supply, outdated firmware, or overheating.

Ensure the power source is stable and firmware is up to date.

If rebooting continues, contact technical support.

7. Is it possible to use a 22 kW charger with a single-phase electrical supply?

• No. A 22 kW charger requires a three-phase supply.
• If connected to single-phase power, charging will be limited to around 7.4 kW.

8. What does a continuously blinking yellow LED indicate?

• A continuously blinking yellow LED means the charger is waiting for proper vehicle connection.
• Check the charging cable and ensure it is fully inserted into the EV inlet.

9. Are users allowed to perform firmware updates themselves?

• No. Firmware updates are carried out only by company-authorised technical personnel.
• Please contact technical support for any firmware-related requests.

10. Is it normal for the charging cable to become warm or hot?

• A small amount of warmth is normal.
• If the cable becomes too hot to touch, stop charging immediately.
• The cable may be damaged or not rated for 22 kW operation.

11. Why is my completed charging session not appearing in the mobile app?

• This usually happens if the charger temporarily lost internet connectivity.
• Check your network connection and allow time for the session data to sync once connectivity is restored.

12. What does the “Insulation Resistance Too Low” message mean?

This message appears during safety checks before charging and usually indicates moisture ingress or insulation damage.
Do not use the charger until it has been inspected.

13. Why do I hear a loud mechanical sound when charging starts?

• The sound comes from the internal relay engaging to start charging. This is normal.
• If the sound is unusually loud or occurs repeatedly, have the charger inspected.

14. Can the CITA Pro 22 kW charger operate safely in rain or snowfall?

• Yes. The charger is designed for outdoor use with an appropriate IP rating when installed correctly.
• Ensure cable entries are sealed and avoid standing water near the charger base.

15. Is installing the charger in direct sunlight a problem?

• Yes, but prolonged exposure to direct sunlight can increase internal temperature.
• Where possible, install the charger in a shaded or well-ventilated location.
• The charger will automatically reduce power if overheating occurs.

16. Why does the charger wait a few seconds before starting charging?

• After plug-in, the charger performs safety checks, vehicle detection, insulation and grounding verification, and relay activation.
• This normally takes 5–15 seconds.

17. Why does the charger appear normal but deliver no power to the EV?

• This may be caused by a damaged relay, faulty current sensor, or a configuration setting disabling charging.
• Check the app or management portal to confirm charging is enabled. If the issue continues, contact technical support.

18. Can the charger still be used when there is no internet connection?

• Yes. Basic charging works without internet.
• Cloud-based features such as remote control, session logs, and monitoring will be unavailable until connectivity is restored.

19. Why does charging consistently stop after exactly 30 minutes?

• A session time limit may be configured in the charger, installer settings, or backend system.
• Check and adjust the session duration if longer charging is required.

20. Why does charging not start after scanning my RFID card?

• The RFID card may not be registered, the backend connection may be unavailable, or the card was not placed correctly on the reader.
• Try again, use another card, and verify permissions in the app.

21. Why does charging suddenly stop with a loud click?

• The charger shut down to protect itself due to a power surge, overheating, or ground fault.
• Check charger logs or app alerts and have the system inspected if this repeats.

22. What should I verify if the charger fails to connect to the OCPP backend?

• Verify that the charger ID, server address, and port are correctly configured and that the OCPP version matches the backend.
• Ensure stable internet connectivity.
• Contact technical support if needed.

23. Can the CITA Pro 22 kW charger share power with other chargers?

• Yes. Load balancing is supported when correctly configured.
• This requires compatible firmware, CT sensors, appropriate wiring (such as master–slave configuration), and proper software setup.
• Your installer can confirm feasibility.

24. Why does the charging power fluctuate between different kW levels?

• This behavior is controlled by the EV.
• Based on battery condition, temperature, and charging stage, the vehicle adjusts the power it requests.
• This is normal.

25. What causes the EV to repeatedly disconnect and reconnect during charging?

• This can be caused by a loose connector, overheating at the plug, communication issues, or minor EV software glitches.
• Reseat the connector, try another cable, or test with a different EV.

26. How can I prevent unauthorised users from accessing the charger?

• Yes. Access can be restricted using RFID cards, mobile app authentication, or backend-based access rules.
• Your installer or system administrator can configure this.

27. Why is the charger showing ready status but not charging the vehicle?

• A solid green LED indicates the charger is ready.
• Charging may not start if the EV battery is full, a delayed schedule is active, or the connector is not fully inserted.
• Reconnect the cable and check EV settings.

28. How can I confirm proper three-phase power supply to the charger?

• A qualified electrician can measure voltage between L1–L2, L2–L3, and L3–L1, which should read around 400 V.
• Some charger interfaces also display real-time phase current.

29. Why is only one phase being used during charging?

• This may occur if the EV supports only single-phase charging, the cable is single-phase rated, or there is a wiring or phase rotation issue.
• Verify EV capability and electrical connections.

30. Why doesn’t charging stop instantly when the connector is removed?

• Charging stops as soon as the connector is unplugged and the connector unlocks automatically.
• If the charger does not behave this way, inspection by an authorised service provider is required.

31. Is it normal for the charger to reboot periodically?

• No, unless a scheduled reboot is configured.
• Frequent resets may indicate firmware instability or an internal safety reset.
• Contact technical support.

32. Can charging power be manually reduced on the CITA Pro 22 kW charger?

• Yes. The charging current can be limited through AP Mode settings. In some cases, internal configuration is required.
• Any internal or hardware changes must be performed only by authorised personnel.

33. What are common reasons for OCPP registration failure?

• This can happen if the charger ID is already registered, the OCPP version does not match the server, or the selected authorisation mode is unsupported.
• Check with your charging network provider.

34. Is it possible to reboot the charger remotely?

• Yes. The charger can be restarted through AP Mode.
• Avoid rebooting during an active charging session, as this may interrupt charging.

35. What steps should I take after changing my Wi-Fi network?

• Power-cycle the charger, enter AP Mode, and reconfigure Wi-Fi settings using the new network details.
• Contact technical support if the issue persists.

36. Why does charging pause in wet or highly humid conditions?

• Moisture may enter the connector area in very humid or wet conditions.
• For safety, the charger may pause charging.
• Always ensure the plug and vehicle socket are dry before use.

37. Is it normal for the charging connector to feel hot after use?

• Light warmth is normal.
• Excessive heat may indicate worn pins, an underrated cable, or a loose connection.
• Stop charging and replace damaged parts immediately.

38. Why does my EV take longer than expected to fully charge?

• Charging time can increase if the EV limits power, the charger is set to a lower current, only one phase is active, or load balancing is enabled.
• Compare charger power readings with the EV dashboard.

39. Is the charger compatible with TN-C or TT earthing systems?

• Yes. The charger supports TN-C, TN-S, and TT systems when installed with correct protection devices and in compliance with local electrical regulations.

40. Why does charging fail only with a particular EV model?

• Some EVs use slightly different communication behaviour.
• A firmware update may improve compatibility.
• Test with another EV to confirm.

41. Why does the app show the charger as “In use” when idle?

• The previous session may not have ended correctly, or the backend may still reserve the charger.
• Restart the charger or clear the session in the management portal.

42. Can the charger be installed close to metal structures or fencing?

• Yes, provided nearby metal parts are properly grounded and installation avoids ground loops or signal interference.

43. Why does the charger restart shortly after charging begins?

• This may be caused by firmware instability, internal power supply overload, or weak supply connections.
• Contact technical support for investigation.

44. What should I do if I notice a burnt smell from the charger?

• This is serious and may indicate internal component damage.
• Switch off power immediately and have the charger inspected before further use.

45. LED pattern: Red 3 s → Yellow 1 s → Red flashes twice → Yellow 1 s (repeating)

• This indicates an over-temperature fault. Allow the charger to cool, improve ventilation, and avoid charging during extreme heat.
• Contact support if it repeats.

46. LED pattern: Red 3 s → Yellow 1 s → Red flashes once → Yellow 1 s → Red flashes three times (repeating)

• This indicates overload, over-current, or DC leakage protection.
• Stop charging and check the EV before continuing.

47. LED pattern: Red 3 s → Yellow 1 s → Red flashes four times → Yellow 1 s → Red flashes twice (repeating)

• This is an over-voltage alarm.
• Power-cycle the charger for short spikes.
• For sustained issues, contact the utility provider or use a stabiliser.

48. LED pattern: Red 3 s → Yellow 1 s → Red flashes two or three times → Yellow 1 s → Red flashes three times (repeating)

• This indicates an over-frequency or under-frequency grid issue.
• Charging should resume only when grid conditions stabilise.

49. LED pattern: Red 3 s → Yellow 1 s → Red flashes five times → Yellow 1 s → Red flashes twice (repeating)

• This indicates CT phase loss.
• Check that all three phases are present.
• If supply is correct, internal CT inspection is required.

50. LED pattern: Red 3 s → Yellow 1 s → Red flashes five times → Yellow 1 s → Red flashes once (repeating)

• This indicates an energy meter fault.
• Inspect wiring and phase connections first.
• If no external issue is found, contact technical support.

51. LED pattern: Red 3 s → Yellow 1 s → Red flashes three times → Yellow 1 s → Red flashes once (repeating)

• This indicates abnormal Control Pilot voltage.
• Inspect the charging cable and connector.
• If no external damage is found, internal service is required.

52. LED pattern: Red 3 s → Yellow 1 s → Red flashes three times → Yellow 1 s → Red flashes four times (repeating)

• This indicates a cable locking system fault.
• Check the lock area for debris.
• If the locking mechanism does not operate correctly, contact technical support.