Brother BAS-416 Manual page 2

Wiper error when turning on the machine or after a trim and the
wiper extended caught the thread and retracted all the way
Upper arm cushion is cracked; missing or the screw has broken off
causing the solenoid sensor plate to be past the sensor. (See Wiper
Assembly Parts Breakdown)
Wiper solenoid arm setscrews on the solenoid are loose or missing. (See
Wiper Assembly Parts Breakdown)
Sensor needs adjustment or is no good. (See checking solenoid sensor
alignment.)
Wiper will not operate at all
Blown fuse on power supply circuit board. (Refer to Instruction Manual)
Wiper solenoid is defective. (See checking the wiper solenoid)
Circuit board is bad. (See checking the voltage to the wiper solenoid)
Wiper only moves a little
Wiper solenoid arm screws are loose or missing. (See Wiper Assembly
Parts Breakdown)
Nut on positioning spacer, B is either loose or missing. (See Wiper
Assembly Parts Breakdown)
Thread presser base misadjusted or bent. (See checking thread presser
base and cover alignment)
Thread guide solenoid base needs adjusting. (See checking thread guide
solenoid base)
A magic tape in thread presser base is either missing or damaged. (See
Wiper Assembly Parts Breakdown)
Upper thread guide hook is bent. (See Wiper Assembly Parts
Breakdown)
Wiper holder plate is bent or not adjusted correctly. (See checking thread
presser base and cover alignment)
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