Morphy Richards
Reduced Heating Performance
Heated models: water only lukewarm or cold despite heater indicator on
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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
Scaled-up in-line heater, Partially failed heater element, Faulty thermostat cycling too early, Incorrect temperature sensor reading
How to Fix / Troubleshooting
Safety: Unplug and allow to cool before working on heater.
- Descale water path: Run a tank of warm water mixed with manufacturer-approved descaling solution through the system to remove limescale.
- Check heater element: Access the in-line heater and measure resistance. Compare with specifications; a significantly higher resistance may indicate partial failure.
- Inspect thermostat: Ensure the bimetal thermostat is firmly attached to the heater body. Replace if it opens at too low a temperature.
- Verify sensor: Test the NTC sensor resistance at room and warm temperatures; replace if readings are out of range.
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Repair Difficulty
Hard
4/5
Required Part
In-line Heater Assembly
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