E05
Beretta DHW Temperature Sensor Fault

E05 displayed; no hot water or incorrect temperature control

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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

Open or shorted DHW NTC, Loose connector, Damaged wiring, PCB sensor input fault

How to Fix / Troubleshooting

Safety: Isolate power before testing sensors.

  • 1. Inspect DHW NTC: Check mounting and connector.
  • 2. Measure resistance (technician): Compare with Beretta NTC chart.
  • 3. Replace sensor: If out of range, fit a new Beretta DHW NTC.
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Repair Difficulty

Medium 3/5

Required Part

DHW NTC sensor
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