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I suspect that by "thermostat" you mean "valve" (not having exactly the right word can throw off your search results a lot!) The thermostat is the component that senses temperature and produces an on/off signal to maintain a target temperature. The valve is the component that controls the water flow in the radiator. If so, then what you ...


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Looking at the pcb, to make it believe the DC input jack is plugged in while it is powered by batteries, I'd recommend bridging the "+" side of the batteries with the "+" pin of the DC input jack. Diodes on the PCB hint about the polarity: it should work if you solder a wire as shown by the green arrow. Still use a multimeter to check for ...


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