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Repair of Hoover UNP324RM Cordless Vacuum Cleaner

 
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MichaelSmith
Probationary
Probationary


Joined: 09 May 2018
Posts: 12

PostPosted: Wed May 16, 2018 5:43 pm    Post subject: Repair of Hoover UNP324RM Cordless Vacuum Cleaner Reply with quote

Hi,

An image is attached. One of these, just out of guarantee, has stopped working no response at all, except the lithium battery still seems to charge via the wall charger. On inspection, the 32.4V battery, the motor and switches all appear to be operational and all wiring and connectors seem to be fine. This leaves the control electronics - the main PCB of SMT components looks surprisingly complex and there is also a PCB within the 9-cell lithium battery case. The circuit boards are being powered and it is not obvious which are the output devices driving the motor.

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