Step 3.
Check to see if lower unit runs properly.
A.
Connect 12 volts directly to the red and black brush leads at the top of the motor shaft (in the controlbox). The motor should run. If not, a problem exists in the lower unit. Check the lower unit forvoltage at the brushes, water in the lower unit, worn brushes, or an open or shorted armature. Repair
as needed. If the motor operates properly, go to Step 4.