E12
Tristar
Power Supply / Low Voltage Error
E12 appears; unit may shut down unexpectedly or not power up reliably.
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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
Defective internal power supply module, Loose AC input wiring, Faulty power cord, Undersized or faulty extension cord
How to Fix / Troubleshooting
Safety first: Unplug the unit before inspecting power components. Do not work on live circuits.
Steps to address E12:
- Check outlet: Plug another appliance into the same outlet to confirm proper voltage and stability.
- Avoid extension cords: Connect the Tristar ice maker directly to a grounded wall outlet. If an extension is necessary, use a heavy-gauge cord rated for the unit's current draw.
- Inspect power cord: Check for cuts, burns, or loose prongs. Replace the Tristar power cord if damaged.
- Access power module: Remove the rear or bottom panel to locate the internal power supply board or module. Check for burnt components or loose connectors.
- Reseat connectors: Firmly reconnect AC input and DC output harnesses.
- Replace power module if faulty: If visible damage is present or voltage output is incorrect (requires a qualified person with a multimeter), replace the Tristar power supply module.
- Reassemble and test: Restore power and verify stable operation without E12.
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Repair Difficulty
Hard
4/5
Required Part
Tristar Power Supply Module
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