Base unit trouble shooting Follow

You're hearing the spring hit the side wall when it's in a loose state. It's similar to a tape measure in how it functions, the same shaky sound can be heard when shaking those.

Also, please don't shake the base unit. There are many components in there that are designed to be tough but should be used in the direction that they're intended to be pulled. Shaking side to side could potentially knock the gears out of alignment creating a noisy machine.

You may have pulled out the cord and allowed it to retract at a severe angle, or faster than the spring could keep up. Pulling it out all the way and letting it go with no resistance may cause this. 

The cord is only 3mm thick and in some circumstances can get jammed on itself within the pulley. This is rare but easily solvable.

Simply pull the cord out to its full extent and allow it to retract while feeding it through your hand. The cord will wind back properly and it should operate properly again. 

Pump it up more, the bladder is protected by an overinflation outlet so you can't break it.

If It still won't stay in place make sure you are following the instructions provided by this video. You may need to use a door with a smaller gap or different floor surface.

If one isn't available we suggest sliding something under the door such as a 12x12" rubber floor tile to help close the gap.