So its a DC25 was working fine. Lent it to a fried and now the brush wont spin. Ive removed the brush head and tested the voltage on the main machine terminals to the brush head. Supposed to be about 300 Dc and Ive got nothing. Tested the switch and the reset button and both seem fine. Inspected the wires on the side of the main motor housing and look OK but again no voltage. Any ideas please ?

Jon