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Matthew LeachAug 11, 2025
Why does my Delta D29382 Pressure Washer motor hum but not start?
- DDerrick MorrowAug 11, 2025
If the motor of your Delta Pressure Washer hums but doesn't start, it might be due to using an extension cord. Avoid using extension cords. Also, check the voltage of the main supply line, as the supply voltage may be below the required minimum.









