High Fan Speed and Noise (overspeed?)
It worked well for a year or so, then we noticed that it made a very high pitched noise like the fan was overspeeding. Also, the debris that we sucked up was shooting out the rear screen. B&D sent us a new unit, but I’m wondering if this one can’t be fixed? On the new one, when it’s switched on, the fan turns on immediately, the broken one sort of “spools up” instead of starting at max power, but then seems to overspeed. It still sucks up, but shoots everything out the rear cooler screen. The wires seems to be connected properly still.
Hi,
It sounds like the speed regulator circuit or motor governor circuit is not functioning correctly.
You may have to dis-assemble the cleaner and access the circuit board and look for any obvious signs of damage such as burnt out components etc.
Post some images of the board back here and hopefully someone may spot something.
Here's how to do this 在已经存在的问题里加入图片
由 jayeff 完成的