AXOR 18355251
AXOR ShowerSolutions Modern Thermostatic Shower Valve Trim User Manual
Model: 18355251
Introduction
This manual provides essential information for the installation, operation, and maintenance of your AXOR ShowerSolutions Modern Thermostatic Shower Valve Trim with Diverter. Please read these instructions carefully before installation and use to ensure proper function and longevity of the product.
Product Overview
The AXOR ShowerSolutions Thermostatic Shower Valve Trim is designed to provide precise control over water temperature and flow for a superior showering experience. It features multiple handles for independent control of various shower functions.

Image: The AXOR ShowerSolutions Modern Thermostatic Shower Valve Trim, showcasing its brushed gold optic finish, four control handles, and integrated hand shower holder.
Setup and Installation
Important: Hansgrohe recommends that a licensed plumber install this product to ensure correct and safe operation.
This product requires the Thermostatic Module Trim Rough for 2 functions (Part No. 18310181) for proper installation. Ensure this rough-in valve is installed according to its specific instructions before proceeding with the trim installation.
Key Installation Notes:
- Verify all necessary rough-in components are correctly positioned and secured within the wall.
- Ensure water supply lines are flushed before connecting the trim to prevent debris from entering the system.
- Carefully align the trim plate and secure it to the rough-in valve using the provided hardware.
- Install the four control handles, ensuring they are properly seated and aligned with their respective functions (volume, temperature, and two outlets).
Operating Instructions
Your AXOR ShowerSolutions trim features four distinct handles for comprehensive control:
- Temperature Control Handle: This handle allows you to set your preferred water temperature. Thermostatic control ensures the temperature remains consistent.
- Volume Control Handle: Adjusts the water flow rate from low to high.
- Outlet 1 Diverter Handle: Activates and controls the flow to the first shower outlet (e.g., overhead shower).
- Outlet 2 Diverter Handle: Activates and controls the flow to the second shower outlet (e.g., hand shower or body jets).
SafetyStop Feature: For enhanced safety, a button on the temperature handle only releases hot water when required. This prevents the temperature from becoming too high, protecting against accidental scalding.
To operate, turn the volume control handle to the desired flow. Then, adjust the temperature handle to your preferred warmth. Finally, select your desired shower outlet(s) using the diverter handles.
Maintenance and Care
The AXOR ShowerSolutions trim is built with durable brass internal components and a polymer trim plate, designed to be resistant to dents, chemical corrosion, and mineral accumulation. To maintain its elegant appearance and ensure long-lasting performance:
- Clean regularly with a soft cloth and mild soap. Avoid abrasive cleaners, scouring pads, or harsh chemicals, as these can damage the finish.
- Rinse thoroughly with clean water after cleaning and dry with a soft cloth to prevent water spots.
- For mineral deposits, use a solution of vinegar and water, applied with a soft cloth, then rinse and dry.
- Periodically check for any leaks or drips and address them promptly to prevent water damage.
Troubleshooting
If you encounter issues with your shower valve trim, consider the following common points:
| Problem | Possible Cause | Solution |
|---|---|---|
| Inconsistent Water Temperature | Thermostat cartridge issue, fluctuating water pressure. | Ensure stable water pressure. If problem persists, consult a licensed plumber to inspect or replace the thermostat cartridge. |
| Low Water Flow | Debris in lines, partially closed shut-off valves, clogged showerhead. | Check that shut-off valves are fully open. Clean showerhead. If issue persists, professional inspection of internal components may be needed. |
| Water Not Diverting Correctly | Diverter mechanism issue. | Ensure diverter handles are fully engaged. If mechanical failure, professional repair or replacement of the diverter cartridge may be required. |
| Leaking from Trim or Handles | Loose connections, worn O-rings or seals, damaged cartridge. | Tighten connections if accessible. For internal leaks, a licensed plumber should diagnose and replace worn parts or cartridges. |
For complex issues or repairs, it is highly recommended to contact a licensed plumber or AXOR customer support.
Specifications
| Attribute | Detail |
|---|---|
| Brand | AXOR |
| Model Number | 18355251 |
| Color | Brushed Gold Optic |
| Material | Ceramic (Handle Material), Brass (Internal Components), Polymer (Trim Plate) |
| Product Dimensions (D x W x H) | 21.85"D x 15.75"W x 5.91"H |
| Style | American |
| Installation Type | Thermostatic Trim (Wall Mount) |
| Number of Handles | 4 (2 for volume/temperature, 2 for outlets) |
| Item Weight | 12.72 pounds (approx. 5.78 Kilograms) |
| Manufacturer | Hansgrohe |
| Required Rough-in Part | Thermostatic Module Trim Rough for 2 functions (Part No. 18310181) |
| Batteries Required? | No |
| Date First Available | March 16, 2023 |
Warranty and Support
For information regarding product warranty, please refer to the official AXOR or Hansgrohe warranty documentation provided at the time of purchase or visit the manufacturer's official website. For technical support, replacement parts, or service inquiries, please contact Hansgrohe customer service directly.
Hansgrohe Contact Information: (Please refer to official Hansgrohe website for current contact details)