E11
Grizzl-E
Line Wiring / Phase Detection Error
Charger LEDs show error; vehicle reports ‘Incorrect wiring’ or ‘Line/Neutral reversed’
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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
Line and neutral miswired on input, Single‑pole breaker used instead of two‑pole, Shared neutral on multi‑wire branch circuit, Internal line sensing circuit fault
How to Fix / Troubleshooting
Safety: Only a qualified electrician should modify branch circuit wiring.
- Confirm breaker configuration: Verify that the Grizzl‑E is on a dedicated 2‑pole breaker with common trip, not on two separate single‑pole breakers.
- Check conductor placement: At the Grizzl‑E terminal block, ensure that L1 and L2 are connected to the two hot legs and that no neutral is connected unless specified by the installation manual.
- Measure voltages: With a meter, verify 240 V between L1 and L2 and approximately 120 V from each leg to ground (in North America).
- Correct any miswiring: If line/neutral are reversed or a neutral is incorrectly used, rewire according to the Grizzl‑E installation guide.
- If wiring is correct: A persistent E11 may indicate a fault in the line sensing circuit on the main control board.
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Repair Difficulty
Hard
4/5
Required Part
Input Terminal Block
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