kidong Posted January 13, 2020 Report Share Posted January 13, 2020 Hi everyone my new subwoofer with cooling fan dependent on temperature which does not run upon power up. Several hours of continuous operation listening music at home with lower volume wherein the fan is still not running but I can sense 45degC on its metal casing. I wish to revised the fan circuit to permanently running upon power up for optimum protection of amplifier circuit. I wish to have your comments if what I will doing is correct. Quote Link to comment Share on other sites More sharing options...
HarryA Posted January 14, 2020 Report Share Posted January 14, 2020 I would think that is a good solution. A more elegant solution would be to use a temperature control switch in series with the fan. They are not very expensive. You want one for example: less than 25 degrees normally open and higher than 25 degrees normally closed. https://www.ebay.com/itm/Temperature-Switch-Control-Sensor-Thermal-Thermostat-25-C-77-F-N-O-KSD301-q-e/333383230245 The admin fixed the ugly url - looks a lot better 😀 Quote Link to comment Share on other sites More sharing options...
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