Eldom Thermostat Misadjustment or Partial Element Failure

Water is only lukewarm, not reaching the set temperature.

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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

Thermostat set too low, One of dual elements failed (on multi-element models), Limescale insulating the element

How to Fix / Troubleshooting

Safety: Turn off power before removing covers.

Steps:

  • Check thermostat setting: On mechanical Eldom heaters, remove the cover and adjust the mechanical thermostat knob to a higher setting (e.g., 60°C). On digital models, verify the setpoint on the display.
  • Test dual elements: If your model has two elements, test each separately with a multimeter. Replace any open element.
  • Inspect for scale: Remove the element flange and check for heavy limescale. Descale or replace the element if heavily coated.
  • Re-test: After adjustments and any replacements, allow several hours for the tank to fully heat and verify temperature.
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Repair Difficulty

Medium 3/5

Required Part

Eldom Mechanical Thermostat / Heating Element
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