sorry for the delay in getting back to you
it is a T6.3A fuse so it is a slow blow fuse,
having the pop bumper switch stuck closed will not blow the fuse on wpc, wps-s or wpc95 (yours is wpc95)

after you have replaced the fuse before powering up the machine UN-plug the connectors at J-133 and J-134. power it up and see if the fuse blows.
if F108 blows again then there is a fault on the board, if it does not blow then check that F102, 103 and 104 are the correct value. turn the machine off and reconnect J-133 and J-134.
Power up again and listen for any locking on solenoids and check if the fuse blows.
let me know how you go