A Dyson V15 handheld vacuum ($800) failed after 2.5 years due to degraded capacitors on the motor driver board — a phenomenon dubbed 'Cooked Capacitor Syndrome'. The fix involves full disassembly to reach capacitors placed next to the hot motor, replacing them with 125°C-rated Rubycon polymer capacitors for about $1 each. Dyson's official response is to buy a new unit. The issue is widespread enough that one community member built a custom open-source replacement driver board for Dyson vacuum motors.
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