E15
Franklin Electric
Internal Drive Hardware Fault
Pump display shows E15 and motor will not run; often after lightning or surges
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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
Surge-damaged power electronics in Franklin Electric VFD, Shorted IGBT module, Failed control PCB, Severe overvoltage event
How to Fix / Troubleshooting
Safety first: High-voltage electronics are involved. Do not attempt board-level repairs unless you are qualified.
- Power cycle: Turn off power for at least 5 minutes to allow capacitors to discharge, then restore power and check if E15 clears.
- Inspect visually: With power off, open the controller and look for burned components, cracked boards, or soot. If present, the drive is unsafe to use.
- Check surge protection: Verify that upstream surge protectors are installed and functional to prevent repeat failures.
- Do not bypass safety: Do not attempt to run the motor directly from line power if it is designed for VFD-only operation.
- Replace drive: A persistent E15 indicates internal failure. Replace the Franklin Electric VFD/control module with an identical or approved replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Franklin Electric VFD drive module
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