Hoffen EK-6144-16 - the electric kettle squeaks when put "on the station &a

The Hoffen EK-6144-16 electric kettle with temperature control exhibits a squeaking noise when placed on its base after boiling, which stops only after removal from the station. The primary cause identified is the degradation of a series capacitor, originally 0.56 µF 275V AC, which had dropped to approximately 0.2 µF. Replacing this capacitor with a new one of similar or slightly different capacitance (e.g., 0.47 µF or 0.68 µF) restored normal operation and eliminated the squeaking. It is recommended to use high-quality capacitors rated at least 275V AC or 630V DC, preferably class X2, to ensure safety and reliability in transformerless power supplies. Additional troubleshooting in similar kettles (e.g., AEG brand) suggests checking relays, triacs, and temperature sensors if capacitors are intact. The kettle’s electronic control typically lacks a traditional thermostat, relying instead on relays or triacs for heater activation. Other components such as resistors may also fail due to short circuits, requiring visual inspection and measurement. Overall, capacitor replacement is the most common and effective solution for the described squeaking issue in this model.
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