Jackson Intermittent Power / Control Voltage Drop

Jackson dishwasher display or indicator lights flicker or reset intermittently during operation.

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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 neutral or ground connection, Failing control transformer, Overloaded circuit, Vibration-induced wiring faults

How to Fix / Troubleshooting

Safety first: Only qualified personnel should work inside electrical panels. Disconnect power before tightening connections.

  • Tighten all terminals: Inspect and tighten line, neutral, and ground terminals in the main junction box and control panel.
  • Check control transformer: Measure control voltage under load. If it drops significantly or is out of spec, replace the transformer.
  • Inspect wiring for vibration damage: Look for broken strands or loose crimp connectors, especially near motors and pumps.
  • Verify dedicated circuit: Ensure the dishwasher is not sharing a circuit with other heavy loads that could cause voltage dips.

After corrections, monitor the display through several cycles to confirm stability.

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Repair Difficulty

Hard 4/5

Required Part

Control Transformer
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