AEG Insufficient Brewing Temperature

Coffee is lukewarm or not hot enough, even on maximum temperature setting.

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.

Possible Causes

Scaled boiler/thermoblock, Failing temperature sensor (NTC), Weak heating element, Incorrect temperature setting in menu

Safety: Allow the machine to cool and unplug before internal inspection.

Check settings: Enter the settings menu and ensure coffee temperature is set to the highest level.
Preheat cups: Use the cup warming plate (if available) or rinse cups with hot water to reduce heat loss.
Descale: Run a full descaling cycle to remove scale from the boiler, which can reduce heat transfer.
Test NTC and heater: If still lukewarm, test the boiler NTC and heater resistance against AEG specifications and replace the faulty component.

Medium 3/5

Thermoblock / Boiler Assembly

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