Reasons for NO GRID BLOWER MOTOR CURRENT OR GRID BLOWER MOTOR CURRENT IS TOO HIGH:-

NO GRID BLOWER MOTOR CURRENT OR GRID BLOWER MOTOR CURRENT IS TOO HIGH:- 
a) MOTOR WINDING/BEARING DEFECT 
b) DEFECTIVE COMMUTATOR, CARBON BRUSH 
c) IBKBL SENSOR DEFECT 
d) ADA DEFECT