Chosen Solution

The unit only blink with the jar but does not work. With the pitcher works fine

I have one of these and the safety switch didn’t work right and the light would just blink because it was not recognizing that the picture was locked into place. I took it apart and bypassed the safety switch and it works perfectly now.

Sane here, pitcher works fine but the Nurti Ninja Cups (both 24 and 32 oz.) will not turn on the blender. The red light on the on/off switch just blinks red. Weird. All I did was wipe down the top of the base.