In this video I try to fix a Dyson Supersonic HD01 Hair dryer. It was not working and only flashed three white lights when powered on. I followed the troubleshooting guides direct from Dyson's website including cleaning the filter multiple times and was left with it still not working.
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Link to video from Thrifty Tool Shed with excellent disassembly: https://www.youtube.com/watch?v=00c3U03lTP8
Watermark PNG sourced from: https://www.freepnglogos.com/pics/subscribe