Grizzl-E Cold Temperature Performance Issue

Grizzl‑E LEDs behave erratically in very cold weather; unit may fail to start charging until warmed

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Possible Causes

Stiff or brittle cable insulation, Condensation freezing on PCB or connectors, Temperature sensor reading out of range at low temps, Marginal components not rated for extreme cold

How to Fix / Troubleshooting

Safety: Do not attempt to flex a very stiff or frozen cable aggressively; it can crack.

  • Allow warm‑up: If possible, allow the charger and cable to warm slightly (e.g., in a closed garage) before use.
  • Inspect for ice: Check the J1772 connector and vehicle inlet for ice or packed snow; remove gently.
  • Check seals: Ensure enclosure gaskets are intact to minimize moisture ingress that can freeze.
  • Persistent issues: If the unit consistently fails in cold but works in moderate temperatures, the temperature sensor or control board may need replacement with a unit rated for the environment.
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Repair Difficulty

Easy 2/5

Required Part

EV Charging Cable Assembly with J1772 Connector
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