E09
BougeRV Surge Protection / MOV Failure

Charger displays E09 and does not start; may occur after a surge or lightning event.

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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

Failed metal-oxide varistor (MOV) on input, Damaged surge protection module, Burned input filter components, Overvoltage event from grid

How to Fix / Troubleshooting

Safety: If you smell burning or see soot around the input area, do not re-energize the charger until it has been inspected.

  • Step 1 – Visual inspection: Disconnect power and remove the charger cover. Inspect the input surge protection area (near where the line wires enter) for cracked, blackened, or exploded MOV discs or surge modules.
  • Step 2 – Check fuses: Locate any internal input fuses or thermal fuses. Test continuity with a multimeter. Replace only with the exact type and rating specified by BougeRV.
  • Step 3 – Assess board damage: If the PCB around the surge components is charred or traces are damaged, the entire BougeRV main control / power board will likely need replacement.
  • Step 4 – Replace surge components: If damage is limited to a discrete MOV or surge module and the board is intact, replace the BougeRV surge protection module / MOV assembly with an identical part.
  • Step 5 – Future protection: Consider installing an upstream whole-house surge protector to reduce the risk of repeat failures.
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Repair Difficulty

Professional Required 5/5

Required Part

BougeRV Surge Protection / MOV Module
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