How To Reset A Sloan Automatic Flush Valve – A Step-By-Step Guide

Are you tired of dealing with a malfunctioning automatic flush valve in your restroom?

Whether it’s not flushing at all or blinking four times without flushing, there are simple solutions to get it back in working order.

In this article, we’ll guide you through the steps to reset your Sloan automatic flush valve and ensure it’s functioning properly.

With a little bit of troubleshooting and adjustment, you can keep your restroom clean and sanitary for all users.

So, let’s dive in and learn how to reset your Sloan automatic flush valve!

How To Reset Sloan Automatic Flush Valve

Step 1: Check for Closed Valves

The first thing to check when your Sloan automatic flush valve isn’t working is if the control stop or main valve supply is closed. If they are, open them to allow water to flow through the valve.

Step 2: Inspect the Handle Assembly

If the valve still isn’t flushing, it could be due to wear and tear on the handle assembly. Over time, the handle assembly can become worn out and need replacement. To fix this issue, simply replace the handle assembly or use a handle repair kit.

Step 3: Check the Relief Valve

Another potential issue with your Sloan automatic flush valve could be a damaged relief valve. If this is the case, it may need to be replaced. Look for any signs of damage or wear on the relief valve and replace it if necessary.

Step 4: Replace Batteries

If your Sloan automatic flush valve blinks four times quickly when a user approaches it and doesn’t flush after they leave, it’s likely that the batteries are low and need replacing. Replace the batteries to ensure proper functioning.

Step 5: Adjust Electronic Eye Range and Water Flow

To ensure that your Sloan automatic flush valve is working properly, you may need to adjust the electronic eye range and water flow. Stand in the light beam and observe the flush timing and water level. Adjust as needed to ensure proper functioning.

Troubleshooting Common Issues

Despite following the above steps, you may still encounter common issues with your Sloan automatic flush valve. Here are some troubleshooting tips to help you resolve these issues:

1. Valve is not flushing at all: If your valve is not flushing at all, it could be due to a clogged or dirty sensor. Clean the sensor with a soft cloth and check for any obstructions in the sensor’s line of sight.

2. Valve is flushing continuously: If your valve is flushing continuously, it could be due to a damaged solenoid valve. Check for any signs of damage and replace the solenoid valve if necessary.

3. Valve is flushing too frequently: If your valve is flushing too frequently, it could be due to a malfunctioning electronic control module. Check for any signs of damage and replace the electronic control module if necessary.

4. Valve is not stopping flushing: If your valve is not stopping flushing, it could be due to a malfunctioning diaphragm kit or piston assembly. Check for any signs of damage and replace the diaphragm kit or piston assembly if necessary.

By following these troubleshooting tips, you can easily identify and resolve common issues with your Sloan automatic flush valve. Remember to always refer to the manufacturer’s instructions and safety guidelines when working on your automatic flush valve.

Adjusting The Sensor Range And Sensitivity

In addition to adjusting the electronic eye range and water flow, it may also be necessary to adjust the sensor range and sensitivity of your Sloan automatic flush valve. This can be done by locating the sensitivity adjustment potentiometer on the back or side of the sensor. For units with a separate amplifier, the sensitivity adjustment screw will be on the amplifier and may be recessed under a plastic or metal screw. Remove the protective screw to adjust the sensor.

To reset the sensor’s sensitivity, turn the potentiometer counter-clockwise 20 full turns or until the sensor no longer detects the product. Then, fully immerse the sensor into the product to be detected and adjust it to the product by turning the potentiometer clockwise until the sensor just detects it. For safety, add 1/4 turn by turning the potentiometer a further 90 degrees clockwise.

It’s important to note that most motion sensors will have LUX, TIME, and SENSITIVITY controls. LUX controls the day and night settings, allowing you to choose when it activates based on brightness. TIME controls how long you want it to activate for, while SENSITIVITY adjusts the distance and size of objects needed to activate it. Adjusting the “range” dial can also shorten the sensor’s detection zone, starting with it set to “max” and turning it down until the range is correct.

Adjustable sensitivity is a standard feature in Tekscan pressure mapping systems and allows users to capture pressure ranges above or below the sensor’s default max range. This is done by adjusting the drive voltage sent to all sensing points in the array. By increasing or decreasing this voltage, you can adjust the peak pressure a sensor can measure to fit your application.

Maintenance Tips To Keep Your Automatic Flush Valve Working Properly

In addition to the steps above, there are some maintenance tips you can follow to keep your Sloan automatic flush valve working properly:

1. Regularly clean the valve: Over time, mineral buildup and debris can accumulate in the valve and affect its performance. To prevent this, clean the valve regularly using vinegar and an old toothbrush to dissolve and remove any buildup.

2. Check the water pressure: If the water pressure drops, it can affect the valve’s ability to function properly. Check the line pressure regularly and ensure it is sufficient to force the relief valve to seat.

3. Replace worn or damaged parts: If any parts of the valve, such as the diaphragm assembly or relief valve, become worn or damaged, they may need to be replaced. Refer to the manufacturer’s instructions or consult a professional for assistance with replacement.

By following these maintenance tips and taking care of your Sloan automatic flush valve, you can ensure that it continues to function properly and avoid costly repairs or replacements in the future.