[warthog]

The reason the motor will slowly return the blade to park on repeated switching of the ignition is that there is, within the motor assy. an electrical thermal overload cutout switch. When the motor or mechanism gets tired the motor draws more current and the overload switch operates. Switching the power off allows the switch to cool and reset.

I need to investigate my driver side motor again because it too stopped working, but seemed fine after I dismantled and cleaned everything. Now I've disconnected it as it's a pain to have the blade sticking straight up! I wonder if the thermal switch doesn't get weak with age and cut out at a lower current as the motor works fine with the wiper blade away from the headlight glass. Next time I may just disconnect the thermal switch.

Does anyone know what the normal current draw should be for these wiper motors (not the fuse rating as the thermal cutout should operate before the fuse blows)?