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The PCB controlling the battery charger is overheating and the led dosen't illuminate when charging, could the led be shorted internally causing the problem. The vacuum in question is a Hoover Freejet Cyclone SU144S2 001

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The problem was caused by the failure of 7 of the 1.2volt cells in the battery pack, the other problems were symptoms of the battery pack failure. Replaced the thermal cutout a 131 degree C component on the PCB in the docking station for the vacuum when recharging, I also had to change the LED which had also failed this is a Red 12 volt 5 mm dia component observe the correct polarity when replacing. Also make sure when replacing the thermal cutout that it is secured tightly to the resistor it sits along side, otherwise it will not respond quick enough if there is another failure.

Posted on Jun 22, 2008

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