E17
Leviton
Inrush / Pre-Charge Circuit Fault
Charger shows E17 or a contactor pre-charge / inrush fault; unit may start then immediately stop charging.
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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 inrush limiting resistor or NTC on power board, Shorted input filter capacitor, Control board timing error, Loose connection in pre-charge path
How to Fix / Troubleshooting
Safety first: This fault involves high-energy components. Turn OFF power at the breaker and do not touch internal parts unless you are qualified.
Steps:
- 1. Observe behavior: Note if the unit clicks once and then immediately faults, suggesting pre-charge failure.
- 2. Visual inspection (qualified person): With cover removed and power OFF, inspect the power board for burnt or cracked inrush resistors, discolored capacitors, or damaged traces.
- 3. Check connections: Ensure all spade and screw terminals on the power board are tight.
- 4. Component testing: A technician can test the inrush resistor and capacitors with appropriate tools. Replace any failed components with Leviton-approved parts.
- 5. Board replacement: If multiple components are damaged or the fault persists, replacing the entire power/control board assembly is often more reliable.
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Repair Difficulty
Professional Required
5/5
Required Part
Leviton EVSE Power Board Assembly
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