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Showing posts from August, 2019

Hacking a Kettle

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I've had this digitally controlled kettle for a while, and through 'drift' of internal components due to age it had begun NOT switching off, instead it was boiling forever. The workaround was to set the temperature to 90degC, but if someone else wanted to use it I'd have to communicate this. I set out to fix it. The aim, to fix the kettle such that it turns off at 100degC, as normal.   For some reason the label says it's a 15 BAR ESPRESSO MACHINE. Beginning to open it up, pried open with a flat-head screwdriver. Only a couple of PH1 screws, and a single PH2 screw holding the control board. Front of the control panel. Rear of the control panel. Front of relay panel. Rear of relay panel. The thermistor wire ends with a 2.54mm header put on for probing with a multimeter. VIDEO HERE VIDEO HERE Here's a resistor I soldered in parallel with the thermistor to make it work. I watched the resistan