E20
Brandt Defrost Timer / Algorithm Error

E20 displayed and the refrigerator may not defrost or may defrost too frequently, affecting temperatures

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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

Corrupted defrost timing in control board, Sensor feedback error, Main PCB failure

How to Fix / Troubleshooting

Safety first: Unplug the refrigerator before accessing the control board.

Step 1 – Reset control:

  • Disconnect power for 10–15 minutes to reset the control logic.
  • Restore power and monitor operation for 24 hours.

Step 2 – Verify sensors:

  • Ensure evaporator and compartment thermistors are functioning correctly (see E1–E3).

Step 3 – Replace main control board:

  • If E20 persists and sensors are good, the defrost timing function on the PCB is likely defective.
  • Replace the main control board following standard procedures.
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Repair Difficulty

Hard 4/5

Required Part

Main Control Board
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