Electrolux Temperature Instability / Modulation Fault

Water temperature fluctuates between hot and cold during a shower

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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

Inconsistent water flow, Partially clogged inlet filter, Faulty flow sensor, Slow-responding temperature sensor

How to Fix / Troubleshooting

Safety first: Be cautious of sudden temperature changes while testing.

Steps:

  • 1. Ensure stable flow: Avoid using multiple fixtures that cause large flow changes while showering.
  • 2. Clean inlet filter: Remove and clean the cold water inlet filter screen to ensure steady flow.
  • 3. Inspect flow sensor: Clean or replace the flow sensor turbine if it is sticking or scaled.
  • 4. Check temperature sensors: Verify that inlet and outlet NTC sensors are secure and reading correctly; replace if sluggish or out of spec.

Note: If fluctuations persist, the control algorithm or PCB may be at fault and should be evaluated by a technician.

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Repair Difficulty

Medium 3/5

Required Part

Flow Sensor Assembly
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