E15
Scalemaster Resin Tank / Internal Bypass Fault

Display shows E15 and the unit indicates a resin tank pressure or flow imbalance

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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

Cracked internal distributor tube in Scalemaster resin vessel, Blocked upper or lower distributor, Internal bypass seal failure, Incorrect plumbing causing cross-flow

How to Fix / Troubleshooting

Safety first: Isolate power and water, and depressurise before removing the control valve from the resin tank.

Step-by-step checks:

  • 1. Verify plumbing: Confirm that inlet and outlet connections are not reversed. Check arrows on the control valve body.
  • 2. Check for bypass issues: Ensure the external bypass valve (if fitted) is in the correct position (usually "service").
  • 3. Inspect for media in plumbing: If resin beads are found in strainers or taps, the internal distributor tube may be cracked.

Internal resin tank and distributor repairs require depressurising, draining, and lifting the valve head. This is typically a job for a professional Scalemaster technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Resin Tank Distributor Tube and Seals
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