The provided documentation details installation and troubleshooting procedures for Moen one-handle tub/shower and shower-only valve trims. The information focuses on identifying potential issues post-installation, such as reversed hot and cold water, flow restrictions, leaks, and handle operation difficulties. The documentation also provides guidance on cleaning and maintaining Spot Resist™ finishes. This article will comprehensively cover these aspects, drawing solely from the provided source material.
Installation Guide Overview
The documentation references installation instructions, noting that styles and parts may vary by model. It provides contact information for Moen support in both the USA (1-800-289-6636) and Canada (1-800-465-6130), as well as website addresses (www.moen.com and www.moen.ca) for further assistance. The document is dated June 18, 2018, and is identified as INS10795.
Troubleshooting: Water Temperature and Flow Issues
Several potential problems related to water temperature and flow are addressed in the troubleshooting guide.
Hot and Cold Water Reversed
If hot and cold water are reversed, the documentation indicates the issue may stem from reversed lines or an upside-down cartridge installation. The recommended remedy is to rotate the cartridge stem 180 degrees, ensuring the notch faces down towards the drain.
Flow Restriction
Flow restriction between the valve and the tub spout can be caused by debris or undersized lines/fittings. The solution involves removing the tub spout and flushing out any debris, followed by replacing any undersized components.
Water Flow from Both Spout and Showerhead
Simultaneous water flow from both the spout and showerhead indicates a restriction. The documentation advises removing the tub spout and flushing out debris, as well as checking for and replacing any undersized lines or fittings.
Valve Orientation
Incorrect valve installation, specifically upside down, can cause issues. The documentation instructs users to remove the cartridge and verify the outlet hole’s position. The outlet hole should be oriented downwards; “up” is defined as the top of the valve. If incorrectly oriented, the valve should be removed and reinstalled properly.
Restricted Temperature Range
A restricted temperature range may be caused by a handle installed upside down, particularly in knob models. The remedy is to remove the handle, rotate it 180 degrees, and reinstall it. Another potential cause is an improperly positioned temperature limit stop, which can be adjusted after removing the handle.
No Water or Low Flow
If there is no water or low flow, the documentation suggests checking that both water supply valves are turned on. This is achieved by turning both valves counterclockwise to the on position.
Leaks and Drips
Leaks or drips from the spout can be attributed to grommets not sealing properly or a faulty cartridge. The recommended solution is to replace the cartridge.
Only Hot or Only Cold Water
Issues with only hot or only cold water flowing can indicate a stuck balancing spool. The documentation does not provide specific instructions for addressing a stuck balancing spool beyond noting the symptom.
Handle Operation Issues
The documentation addresses problems related to handle operation, including difficulty turning the handle and issues with handle installation.
Handle Difficult to Turn
If the handle is hard to turn, the cartridge stem may be difficult to rotate. The documentation suggests replacing the cartridge or lubricating it.
Handle Installation Problems
Problems with handle installation, such as the handle rubbing against the escutcheon, may indicate the valve is installed too far back from the finished wall. In such cases, contacting Moen for assistance is recommended. If the handle does not install at all, Moen assistance is also advised.
Spot Resist™ Finish Care
The documentation provides specific instructions for cleaning and maintaining Spot Resist™ Stainless and Spot Resist™ Brushed Nickel finishes. Moen recommends using a mild soap, rinsing thoroughly with warm water, and drying with a clean, soft cloth.
The documentation explicitly lists substances to avoid when cleaning these finishes, including:
- Abrasives (including abrasive sponges or steel wool)
- Ammonia
- Bleach or sodium hypochlorite
- Organic solvents (e.g., alcohols)
- Lime scale removers or other harsh chemicals
Failure to adhere to these cleaning instructions may void Moen’s warranty.
Additional Troubleshooting Notes
The documentation includes a section addressing issues where the handle rubs against the escutcheon. This can occur if the valve is installed too far back from the finished wall. Contacting Moen for assistance is recommended in this scenario. The documentation also notes that if the handle is difficult to turn, the cartridge stem may be difficult to rotate, suggesting cartridge replacement or lubrication as potential remedies.
Conclusion
The provided documentation offers a concise troubleshooting guide for Moen one-handle tub/shower and shower-only valve trims. The guide focuses on common post-installation issues related to water temperature, flow, handle operation, and finish maintenance. The recommended solutions primarily involve cartridge replacement, adjusting valve orientation, flushing debris, and proper cleaning procedures. The documentation consistently directs users to contact Moen for assistance with more complex issues or when specific solutions are unclear. Proper care of Spot Resist™ finishes is emphasized to maintain the warranty.