CP_a014
Tesla
Load Sharing / Network Communication Fault Between Wall Connectors
Load sharing group of Wall Connectors not balancing current; app shows CP_a014 on one or more units
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Incorrect load sharing configuration, Weak Wi‑Fi or RS‑485 (for older models) connection, Mismatched firmware versions, One Wall Connector in group offline
How to Fix / Troubleshooting
Safety: Load sharing misconfiguration can overload circuits. Verify breaker sizing and configuration before enabling group charging.
- Check group settings: For Gen 3, connect to each Wall Connector's commissioning interface and verify they are in the same load sharing group with correct maximum circuit current.
- Verify connectivity: Ensure all Wall Connectors have a reliable Wi‑Fi connection or, for older models, that the RS‑485 wiring is correctly daisy‑chained and terminated.
- Update firmware: Make sure all units in the group are on the latest firmware to avoid protocol mismatches.
- Test individually: Temporarily disable load sharing and test each Wall Connector alone to confirm they operate correctly as standalone units.
- If one unit consistently shows CP_a014: Its communication hardware may be faulty and that Wall Connector may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Tesla Wall Connector communication interface (Wi‑Fi or RS‑485)
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