Originally posted on TheNutraMilk.com
If any of the parts are not locked in, due to NSF safety warning the machine will stop and show error “ER message”/red light.
Make sure the lid is locked into place.
Make sure to screw in the top part of the black arm if loose to prevent it from popping out.
Make sure the black arm on top is locked into place w/ the motorized wipers (if this pops up, the machine will also stop and give you an ER message/red light).
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