E15
Dimplex Internal Leak / Drip Tray Sensor Activated

E15 displayed; unit indicates internal leak or moisture fault

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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

Leaking heat exchanger, Loose pipe union inside unit, Failed gasket on heating element flange, Condensation collecting in base

How to Fix / Troubleshooting

Safety: Turn off power and close the water supply immediately to prevent further leakage.

  • Inspect drip tray: Remove the front cover and check the base of the unit for standing water. Dry the area and locate the leak source.
  • Tighten unions: Check all internal compression fittings and unions for drips. Gently tighten if loose, taking care not to overtighten.
  • Check element flange: Inspect around the heating element flange and gaskets for seepage. Replace gaskets if deteriorated.
  • Examine heat exchanger: Look for corrosion or pinhole leaks on the exchanger body. If leaking, the exchanger will need replacement.

Action: After repairs, dry or reset the leak sensor and restore power. If E15 returns or the leak source is not obvious, contact a Dimplex service technician.

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Repair Difficulty

Hard 4/5

Required Part

Internal Pipework / Heat Exchanger / Leak Sensor
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