1693219651Kohler Touchless Toilet Troubleshooting Guide

Kohler Touchless Toilet Troubleshooting Guide


Welcome to our comprehensive troubleshooting guide for Kohler touchless toilets. In this article, we will provide you with a step-by-step approach to identify and resolve common issues that may arise with your touchless toilet system. Whether you’re experiencing flushing problems, sensor malfunctions, or any other related difficulties, we’ve got you covered. So, let’s dive in and ensure that your Kohler touchless toilet is functioning flawlessly once again.

1. Flushing Problems

1.1. No Flushing Action

If your Kohler touchless toilet is not flushing at all, there are a few troubleshooting steps you can undertake:

1. Check the Water Supply: Ensure that the water supply to the toilet is turned on. You can do this by inspecting the shut-off valve near the toilet and making sure it’s fully open.

2. Inspect the Battery: If the toilet is not flushing, it’s possible that the batteries are depleted. Remove the tank lid and check the battery compartment. Replace them with fresh batteries if necessary.

3. Clean the Sensor: Over time, debris and mineral buildup can accumulate on the sensor, hindering its functionality. Gently clean the sensor using a soft cloth and mild detergent. Be careful not to scratch the sensor surface.

1.2. Incomplete Flushing Action

If your Kohler touchless toilet is flushing but the action is incomplete, follow these troubleshooting steps:

1. Check Water Level: Ensure that the water level in the toilet tank is adequate. If it’s too low, the toilet may not flush properly. Adjust the water level by adjusting the float or refill valve.

2. Inspect Flush Valve Seal: A faulty or worn-out flush valve seal can lead to incomplete flushing. Turn off the water supply, flush the toilet, and inspect the seal for any damage or debris. Replace it if necessary.

2. Sensor Malfunctions

2.1. Sensor Not Responding

If the sensor of your Kohler touchless toilet is not responding, try these troubleshooting steps:

1. Check for Obstructions: Ensure that there is nothing obstructing the sensor’s view. Objects or clothing hanging near the toilet can interfere with the sensor’s functionality. Clear any potential obstructions.

2. Clean the Sensor: Similar to flushing problems, cleaning the sensor can resolve many sensor-related issues. Gently wipe the sensor with a soft cloth to remove any dirt or grime that may be affecting its performance.

3. Reposition the Sensor: If the sensor is misaligned, it may not detect movement correctly. Adjust the sensor’s position so that it aligns with the user’s hand movement during flushing.

2.2. Sensor Triggering False Flushes

If your Kohler touchless toilet flushes without any user interaction, consider the following troubleshooting steps:

1. Check for Nearby Objects: Objects placed near the toilet, such as towels or curtains, can inadvertently trigger the sensor. Move any potential triggering objects away from the toilet to prevent false flushes.

2. Reset the Sensor: Some touchless toilet models have a reset button or a reset procedure. Consult your toilet’s user manual to determine the correct reset method and follow the instructions accordingly.

3. Water Leakage

3.1. Tank Leakage

If you notice water leaking from the tank of your Kohler touchless toilet, follow these steps to troubleshoot the issue:

1. Check the Tank Bolts: Inspect the tank bolts located at the bottom of the tank. Tighten them if they are loose, as loose bolts can lead to water leakage.

2. Inspect the Gasket: Examine the tank-to-bowl gasket for any signs of damage or deterioration. Replace the gasket if it appears worn-out or cracked.

3. Verify the Flush Valve Seal: A faulty flush valve seal can also result in water leakage. Inspect the seal and replace it if necessary.

3.2. Base Leakage

If you notice water leaking from the base of your Kohler touchless toilet, take the following troubleshooting steps:

1. Inspect the Wax Ring: The wax ring between the toilet base and the floor can deteriorate over time, leading to leaks. Remove the toilet and inspect the wax ring. Replace it if it appears damaged or flattened.

2. Check for Cracks: Thoroughly examine the toilet base for any cracks or fractures. Any visible damage may require the replacement of the toilet.


In conclusion, troubleshooting issues with your Kohler touchless toilet doesn’t have to be a daunting task. By following the steps outlined in this guide, you can effectively identify and resolve common problems related to flushing, sensor malfunctions, and water leakage. Remember to check the water supply, clean the sensor, and inspect various components for damage or wear. By doing so, you can ensure that your touchless toilet operates flawlessly, providing convenience and hygiene to your bathroom experience. Happy troubleshooting!

Kohler Touchless Toilet Troubleshooting Guide


1. Why is my Kohler touchless toilet not flushing?
– There could be several reasons for this issue. First, check if the batteries in the touchless module are properly inserted and functional. Additionally, ensure that the water supply is not turned off or clogged.

2. How can I fix a constantly running touchless toilet?
– A constantly running touchless toilet can be caused by a faulty sensor or a problem with the valve seal. Start by cleaning the sensor with a damp cloth and ensure there are no obstructions. If the problem persists, you may need to replace the valve seal.

3. Why is my touchless toilet not sensing when I approach?
– If your touchless toilet is not sensing when you approach, the sensor may be dirty or obstructed. Clean the sensor with a mild cleaner and a soft cloth. Avoid using abrasive materials or harsh chemicals that may damage the sensor.

4. Why does the water keep running after flushing with the touchless feature?
– If the water keeps running after flushing with the touchless feature, it could indicate a problem with the flapper or the flush valve. Inspect these components and ensure they are properly aligned and not damaged. Replace any faulty parts if necessary.

5. What should I do if my touchless toilet stops working completely?
– If your touchless toilet stops working completely, check if the batteries are dead or incorrectly installed. Replace the batteries if needed. If the issue persists, contact Kohler customer support or a professional plumber for further assistance.

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Natasha is the owner of Smart Home Bath, a company that specializes in providing innovative and convenient home automation solutions. With a background in electrical engineering and a passion for making life easier through technology,

Natasha founded Smart Home Bath to help homeowners upgrade their living spaces and improve their daily routines.

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Whether you're looking to add voice-controlled lighting, automated temperature control, or any other smart home feature, Natasha and her team at Smart Home Bath have the knowledge and expertise to help you get the most out of your home automation system.

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