2/13/ · Checked for battery at the blower, when the car is running There is no battery to operate the blower Rotated all the PDC relays around, they have the same ID, other than ABS pump Blower still does not work Rotated all the unmarked relays around in the junction box Blower still does not work Checked continuity of 40 amp blower fuse;5/5/ · In most cases, since the bypass circuit is still intact, the blower motor will continue to work on highspeed with a failed resistor There are, however, instances where a bad resistor will prevent the current from reaching the blower motor altogether Without any power, the motorThe blower motor is most likely drawing too much current It worked for a bit but now it burned out the resistor again from the current draw You need to replace both the blower motor and the resistor together to keep it running How To Maintain Cabin Combustion Heaters Aviation Pros How to know if blower motor is bad