Getting into Danze Roman faucet to unscrew it

you may need to adjust the diverter cartridge on the valve to fix the switch control arm. Here are the steps to do so:

Turn off the water supply to the faucet and open the valve to release any residual pressure.

Remove the handle by loosening the set screw with an Allen wrench and pulling it off.

Unscrew the bonnet nut and remove the diverter cartridge by pulling it out with pliers.

Check the O-rings and seals for any damage or wear and replace them if necessary.

Align the diverter cartridge with the valve body and push it in firmly until it snaps into place.

Screw the bonnet nut back on and tighten it with a wrench.
Reattach the handle and secure it with the set screw.

Turn on the water supply and test the faucet for proper operation.
I hope this helps you fix your faucet. If you need further assistance, please contact Danze customer service at 1-888-328-2383.

reassembled the diverter incorrectly

sounds like you need a new tub spout with diverter...thats your problem...unscrew spout and go to lowes and match up with new one...use pipe dope on threads and reinstall new one...good luck

Do you have water coming out of the tub spout and not the shower head? If so how does the water get directed to the shower head,is it by pulling up the diverter on the tub spout?If water is still coming out of the tub spout then the diverter is bad and the tub spout needs to be replaced.

you have to replace diverter....if its in the tub spout unscrew and go to lowes or plumbing supply and match up style and replace...use pipe dope and screw back on tight...good luck

Vfiippone,
I have the same issue with a Danze Sonora shower Valve. I called Daze and they sent me a new cartridge. After installing it I have the same problem. I also put a surge arrester on my toilet which had little effect. If you find the cure please post it.

Personal Shower Adapter Fitting


Remove the aerator from the spout and take it with you to your local hardware store or home center (for sizing purposes). These are usually sold with an aerator thread adapter, which allows it to connect to most faucets in the marketplace.

the washer on back of the dirverter knob needs replacing or the seat behind the vavle stem

I had the same problem and just now fixed it.  Remove the faucet head - the tub filler - and pull out the diverter tube insert.  It's the valve at the bottom that's sticking - probably because of calcium or mineral deposits.  I washed mine with white vinegar and pushed a wooden spoon handle down the tub to unstick the valve, scrubbed it with vinegar and a toothbrush and re-installed.  Works perfectly now.

It can be repaired.

You can see an exploded diagram here

I can post more if you need more specific instructions.