E15
UniMac
Door Lock Timing / Payment Interlock Error
Washer displays E15 and may not lock out door or start cycle on commercial UniMac models.
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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
Incorrect signal from payment system to door lock, Faulty door lock timing circuit on control, Loose wiring between lock and control, Misconfigured control parameters
How to Fix / Troubleshooting
Safety first: Unplug the washer before working on control or lock wiring.
- Verify payment completion: Ensure the payment system is correctly signaling cycle authorization. Check configuration settings per UniMac documentation.
- Inspect lock wiring: Confirm the harness between the control and door lock is intact and firmly connected at both ends.
- Check control configuration: Enter service mode (per UniMac manual) and verify door lock and payment parameters are set correctly for your installation.
- Replace faulty components: If wiring and configuration are correct, replace the door lock assembly first. If E15 persists, the main control board may need replacement.
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Repair Difficulty
Hard
4/5
Required Part
Door Lock Assembly
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