Here’s a step-by-step guide to setting up a smart shower system using the Moen Smart Shower (U by Moen) that works with Alexa.

This includes the components you need, basic installation steps, app pairing, and how to connect it with Alexa.

What You’ll Need

Required Hardware:

1. Moen Smart Shower Digital Controller (2- or 4-outlet)
2. Moen Smart Thermostatic Digital Valve (S3102 or S3104)
3. Shower trim + fixtures (compatible with your home setup)
4. Alexa-enabled device (like Echo Dot, Echo Show, etc.)
5. Wi-Fi network (2.4GHz or dual-band)

Tools (if DIY-installing, or confirm with your plumber):

• Drill
• Screwdrivers
• Electrical wire stripper
• Mounting bracket (usually included)
• Access to your home’s water lines and electrical

Step-by-Step Setup Instructions

1. Install the Smart Valve (S3102 or S3104)

• This gets installed behind the wall where your regular shower valve is.
• A licensed plumber is highly recommended for this part.
• Connect your home’s hot and cold water lines into the inlets.
• Connect up to 2 or 4 shower fixtures (e.g., showerhead, handheld, body jets) to the outlets.
• The valve requires electrical power, so an outlet nearby is necessary. So yes, you may also need an electrician as well to install an outlet.

✅ Tip: Ensure the valve is installed in a location that’s accessible for future maintenance.

2. Mount and Connect the Digital Controller

• Mount the digital touch screen controller inside your shower or just outside the stall using the included bracket.
• Connect the controller to the valve using the provided data cable.
• Plug in the controller to a GFCI-protected outlet.

3. Connect to the Moen Smart Water App

• Download the Moen Smart Water App (available on iOS and Android).
• Create a Moen account.
• Use the app to detect the valve and controller on your Wi-Fi network.
• From here, you can:
  • Name your shower zones (e.g., “main head”, “handheld”)
  • Set default temperatures
  • Create custom presets (like “Morning Shower” or “Cool Down”)

4. Integrate With Alexa

• In the Moen app, enable Alexa Integration from the settings.
• Open the Amazon Alexa app.
• Go to “Skills & Games” and search for “Moen Smart Water Network”.
• Enable the skill and log into your Moen account.
• Alexa will detect your smart shower and add it as a device.

Now you can say:

“Alexa, turn on the shower.”
“Alexa, start my morning shower.”
“Alexa, set the shower to 103 degrees.”

Daily Use Tips

• You can turn on the shower from your phone or by voice before entering.
• The system will automatically pause once it reaches your desired temp, so you don’t waste water.
• You can use the physical controller to override voice or app controls if needed.

Do I Need a Pro?

Most likely, yes!!

• ✅ If you’re replacing existing plumbing: Yes, hire a licensed plumber and possibly an electrician.
• ✅ If you’re just connecting devices and pairing apps: No, you can likely DIY.

Final Thoughts

The Moen Smart Shower is one of the most advanced aging-in-place bathroom upgrades. It’s hands-free, precise, and customizable.

Whether you’re dealing with arthritis, vision problems, or just want to avoid slips while adjusting knobs, this system gives both comfort and safety.