E15
Grizzl-E
Microcontroller / Logic Fault
Charger LEDs show error; unit appears to power but does not respond correctly to vehicle connection
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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
Corrupted firmware, ESD damage to microcontroller, Failed oscillator or clock circuit, Internal logic power instability
How to Fix / Troubleshooting
Safety: Turn OFF power before any disassembly.
- Hard reset: Turn the breaker OFF for several minutes to fully discharge internal capacitors, then turn ON and observe behavior.
- Check for environmental factors: Excessive moisture or condensation inside the enclosure can cause logic faults. Inspect and dry the interior if needed.
- Look for board damage: Burn marks or cracked ICs on the main control board indicate failure.
- Resolution: Logic faults are not field‑repairable at component level. Replace the main control board assembly.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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