E06
Scalemaster Control Board / Memory Fault

Display shows E06 and the unit displays incorrect time or loses programming

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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

Failed backup capacitor or battery on Scalemaster PCB, Power surge or brownout damage, Corrupted firmware, Loose low-voltage power connector

How to Fix / Troubleshooting

Safety first: Turn off mains power before removing the electronic control panel cover.

Step-by-step checks:

  • 1. Check power stability: Confirm the softener is connected to a stable power source. Avoid sharing with heavy loads (pumps, heaters) that cause voltage dips.
  • 2. Inspect low-voltage connections: Remove the front cover and locate the transformer/low-voltage connector on the PCB. Ensure it is fully seated and free from corrosion.
  • 3. Reset the controller: Power off for 2–3 minutes, then restore power. Re-enter the time, hardness, and regeneration settings as per the Scalemaster manual. Observe if settings are retained after a short power interruption.
  • 4. Look for signs of damage: Visually inspect the PCB for burnt components, bulging capacitors, or water ingress. Any such signs indicate the board should be replaced.

If E06 or memory loss continues, the control board assembly will likely need replacement. This should be done by a qualified technician to ensure correct programming and safe operation.

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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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