Zline Intermittent Power Loss / Overheating Protection

Dishwasher stops mid-cycle and all lights turn off, then may resume later.

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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

Loose power connection in junction box, Overheating thermal fuse opening, Faulty door switch losing contact, Control board overheating

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before inspecting electrical connections.

  • Inspect junction box: Check for loose wire nuts or signs of arcing. Tighten and re-secure connections.
  • Check door switch alignment: Ensure the door latch fully engages and the switch is not marginally adjusted.
  • Inspect thermal devices: Some models include a thermal fuse on the control board harness. Test for continuity and replace if open, while also addressing the cause of overheating.
  • Ensure ventilation: Confirm the dishwasher has adequate space around it and is not tightly sealed with insulation blocking airflow to the control area.
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Repair Difficulty

Hard 4/5

Required Part

Thermal Fuse
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