E20
GE Power Supply or Line Voltage Error

GE dryer displays E20 and will not start a cycle.

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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

Missing L1 or L2 leg of 240V supply (electric models), Tripped double-pole breaker, Loose power cord connections at terminal block, Faulty main control power supply circuit

How to Fix / Troubleshooting

Safety first: Turn off the breaker before inspecting electrical connections. If you are not comfortable working with 240V circuits, contact an electrician.

Check house power:

  • Verify the dryer breaker is a double-pole 30A breaker and both handles are in the ON position.
  • Reset the breaker fully OFF then ON.
  • Use a multimeter at the dryer receptacle to confirm ~240V across the two hot legs and ~120V from each hot to neutral.

Inspect dryer terminal block:

  • Unplug the dryer and remove the rear terminal block cover.
  • Check for burned wires, loose screws, or melted insulation.
  • Tighten loose connections and replace any damaged power cord or terminal block.
  • Restore power and test.

If correct voltage is present and connections are good but E20 remains, the main control board power supply may be defective and require replacement.

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Repair Difficulty

Hard 4/5

Required Part

Power Cord and Terminal Block
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