E15
Sub-Zero
Internal Control Memory or EEPROM Error
Oven display shows E15 and the clock or timer may reset unexpectedly.
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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 control board firmware, Power surge or interruption, Failing main control board memory chip, Poor grounding of appliance
How to Fix / Troubleshooting
Safety: Disconnect power before removing the control panel.
- Power reset: Turn off the breaker for 10 minutes to fully discharge the control. Restore power and observe if E15 returns.
- Check grounding: Inspect the junction box and ensure the ground wire is securely connected to the oven chassis and house ground.
- Surge protection: If E15 occurs after storms or power events, consider installing a whole-house surge protector or dedicated surge device for the oven circuit.
- Control replacement: Persistent E15 usually indicates a failing control board memory. Replace the main control board with the correct Sub-Zero part. Some models may require configuration or programming after replacement; refer to the service manual or use a factory-authorized technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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