Model1101p how does it work. what is plug in handle for?

on the ergonomic handle design the vibration will sometimes cause one of the switch leads to come loose. Remove the handle tube. Lay the handle tube flat on a bench or table and remove all the handle screws. Work handle haves apart and you will be able to see if the switch leads are loose. If not, the wires inside the power plug may have become separated by somebody yanking on the cord, rather than pulling the plug. With a meter or test light, you can check continuity between the plug and handle wiring. The only thing left is the motor, but let your local repair guy do this, because it can be a bear to get out and re-installed.

Most Hansgrohe faucets or handles have a plug in them. This does not come apart but in most cases you simply push the plug into the handle and once you have removed the hendle you can retrieve the plug from inside the handle or on top of the faucet. If you need further help fell free to contact Hansgrohe Tech at 1-800-334-0455 press 2 for Technical.

On my 95 Astro, I use a 10mm ratching box-end wrench with a flexible head to get the top nut on the door handle. Low profile and tight work space.

The power head requires 120 Volts. Some hoses have a receptacle in the handle for the power head plug, and the hose has a cord at the wall inlet end that plugs into a receptacle. Some hoses have a plug at the wall inlet end that plugs into a 120Volt receptacle built into the inlet. The hose plugs into this receptacle when you push the hose into the inlet. The power for this built-in receptacle is wired with line voltage when the system is installed.

Have to remove inner door panel and is usually 2 bolts around 10mm that hold handle in, but the rods must be removed first and these rods are only held in place by a spring steel clip that just flips out off the rod at the handle end.
To remove door panel - look for visible screws under and around the edges and or handles, remove all these. If window is winding type a horse-shoe clip holds the handle on and can be pushed off with a screw-driver if you push the panel away from handle and look behind the handle.
Then take a putty knife and or butter knives and insert between door and panel to pop plastic clips from door then lift on panel to remove from window jam.  Be careful of wires and plugs after this.  Remove plug clips and place panel aside.  Remove plastic and sound-proofing if any in the corner near the handle and a 10mm 1/4" drive ratchet to remove bolts on each side of handle.
This is a general answer but should work for the Cobalt as well.
East Coast Canada Rocks!!
:))

Almost certainly there is a break in the wire inside the flex. This happens most often just where the flex enters the handle (less often where it enters the plug). If you have any means of checking for electrical continuity, with the machine unplugged from the mains remove the handle and check for continuity between the pins of the plug and the sockets at the end of the handle. If you can't do this yourself, you will need professional help.
If there is a fault in the flex close to the handle it is possible to remove the flex from the handle, cut off the damaged bit and re-wire the remainder into the handle. To have a professional do this may well cost more than just fitting a new pre-wired handle.
Good luck! If you need more help, just post a reply here.

replace the switch.

If the cord coming from the bottom up to the handle is loose, and is a plug, push it in. If that doesn't help. then could be a problem with the motor. One other thing to check is inside the handle, maybe a wire came loose.

The cord at the bottom of the power head neck may be bad. But so could the plug connections in the hose handle, and the cord on the wand. Check both ends of the wand and make sure that the plug ends aren't burnt, if they are replace them and maybe the plug inside the hose handle.