PUR Water Filter Light Not Working? Try These Troubleshooting Tips

Do you find yourself facing any problems with the illumination feature of your PUR water filter? Is it not performing to its optimal standards?

Be at ease, as we present to you some formal troubleshooting suggestions that can potentially aid in rectifying these issues.

This article delves into frequently encountered complications that could lead to improper functioning of the light and furnishes corrective measures for resolving them.

By implementing these recommendations, by the conclusion of this guide, users will be able to relish pure and filtered drinking water yet again.

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Understanding the PUR Water Filter Light


The PUR water filter light is a small indicator light on top of some PUR water filtration systems. The light is designed to alert you when it’s time to replace the filter in your PUR water filter. The PUR water filter light comes in different colors, and every color has a different meaning.

Green Light: The green light indicates that the filter is functioning and doesn’t need to be replaced yet.

Yellow Light: The yellow light means that the filter is getting close to needing replacement. You should order a replacement filter soon.

Red Light: The red light indicates that the filter has reached the end of its life and needs to be changed immediately. If you don’t replace the filter, your water will no longer be properly filtered.

It’s important to note that not all PUR water filtration systems have a filter light, and some models may have different colored lights or different meanings for each color. Check your owner’s manual for specific information about your model.

Understanding the PUR water filter light is essential for keeping your water filtration system working effectively. By paying attention to the color of the light, you can ensure that your water is filtered and safe to drink.

Common Culprits for a Faulty PUR Water Filter Light

1. Tripped circuit breaker

Tripped circuit breaker PUR Water Filter Light Not Working

Another possible culprit for a non-functional light is a tripped circuit breaker. This can occur if there are too many appliances using electricity in your home at the same time.

To prevent this from happening, make sure to check the electrical load in your home before using your PUR water filter. It’s a good idea to turn off other appliances while the filter is in use to avoid overloading the circuit.

If the circuit breaker has tripped, reset it and test the light on your water filter to see if it is working properly.

2. The issue with the electrical connection

The issue with the electrical connection PUR Water Filter Light Not Working

If your PUR water filter’s light isn’t turning on, it could be because of an electrical problem. The PUR water filter might not be plugged in correctly to a power outlet.

So just make sure you’ve got it securely connected and see if the light starts working again.

3. Underlying problem with the water line or faucet

Underlying problem with the water line or faucet PUR Water Filter Light Not Working

If you’ve tried all the previous troubleshooting steps and are still experiencing issues with your PUR water filter, there may be an underlying problem with the water line or faucet.

To check for leaks, turn off all faucets and allow them to sit for about 15 minutes before turning them back on. This way can help you identify any leaks in your system.

4. Incorrect system setup

Incorrect system setup PUR Water Filter Light Not Working

Another potential cause for a non-functional light is an incorrect system setup. The PUR water filter can be installed using either the gravity flow or the pressure flow method.

The main difference between these two methods is the amount of pressure used to push water through the filter. If you’re using the pressure flow method and the light isn’t working, it’s possible that there isn’t enough pressure in your system.

In this case, it may be necessary to switch to the gravity flow method to ensure that the light works properly. Make sure to refer to the user manual for your specific filter model to ensure that you have set up the system correctly.

5. Filter light not be turned on

Filter light not be turned on PUR Water Filter Light Not Working

If you suspect that the indicator light on your PUR water filter is not working properly, you can verify its functionality by checking whether it has been turned on. Follow these steps to turn on the indicator light:

  • Turn off all faucets in your home and turn on all showerheads simultaneously.
  • Wait for 30 seconds before turning off all showerheads simultaneously again.

This procedure simultaneously activates indicator lights in all water filters to verify the functionality of your PUR filter’s light. Replace any filter that does not illuminate after this test. Refer to your user manual for model-specific instructions on activating the indicator light.

6. Not fully inserted

Not fully inserted PUR Water Filter Light Not Working

The Pur water filter may not work properly because the top part is not fully inserted into the bottom part of the unit. Make sure that the filter must completely immersed so that it will function correctly.

To avoid any leakage or damage, ensure that the top part of the unit fits securely into the bottom part.

7. The filter hasn't replaced

The filter hasnt replaced PUR Water Filter Light Not Working

If you haven’t replaced your filter in the last two months, the indicator light will turn on, indicating that it’s time to replace it. If you haven’t replaced the filter since the last time the light turned on, there may be an issue with your unit.

8. The base of your filter is not connected properly

The base of your filter is not connected properly PUR Water Filter Light Not Working

You need to ensure that the base of your filter is hooked up to the faucet or tap. Double-check that it’s snug and not leaking or cracked. If you notice any problems, take care of them promptly to avoid a flooded house later.

9. Holes or cracks in the system

Holes or cracks in the system PUR Water Filter Light Not Working

If the base is connected properly and leaks are still present, check for any holes or cracks in the system. These issues could be a result from mishandling during installation, filter replacement, or shipping. Make sure to address these issues promptly to prevent further damage.

10. The filter has been removed from its base


The most common reason for the PUR water filter light to turn on is when the filter has been removed from its base. The light will automatically turn off when the filter is placed back correctly on the water filter’s base.

11. Low water pressure

Low water pressure PUR Water Filter Light Not Working

Another possible reason for the light not working is the low water pressure in your home, by checking with your local water company to determine the appropriate water pressure for their systems.

If this information is not available, you can check if the water pressure is enough by running your faucets until it’s full and see if the water flows smoothly through the system without any issues.

12. The reset button has been pressed


Your unit may have been resets if you have recently changed your filter or have not run water through it for more than 24 hours.

To reset your unit, locate the reset button on the top and hold it down until the indicator light flashes green/yellow/red and then turns off completely. Once the unit has reset, there should be no more red lights, and you can resume using it without any issues related to the filter.

13. Power goes out


When the power in your home turns off and on, it can cause your electronic devices, such as your PUR water filter, to reset.

If you have been noticing your filter’s light blinking for some time, try resetting the power at the main switch as it may be a quick and easy solution to solve any issues.

14. Unknown reasons


There are some potential unknown reasons why your PUR water filter light may not functioning correctly. It could be due to a clogged filter caused by accumulated sediment or dirt, even if you have been changing your filters frequently.

Additionally, living in an area with hard water can lead to mineral buildup on the faucet valve, which can prevent it from closing all the way, resulting in low pressure and no water flow.

15. Water dripping from your faucet when it's not in use


If you notice water dripping from your faucet when it’s not in use, it may indicate the presence of air in your pipes, which can occur through joint and valve leaks or excessive pressure. It’s important to address these causes before trouble shooting your PUR water filter system.

To remedy the issue, turn off the main water supply valve(s) at the curb or street for 30 seconds, then turn them back on and open all faucets, showerheads, and sink sprayers for approximately 30 seconds each to remove any remaining air bubbles from the pipes.

16. Filter replacement


If your PUR water filter light isn’t functioning, it’s likely due to the need for a filter replacement, which is the most frequent cause. The manufacturer suggests replacing your filter after consuming 40 gallons of water or every two months, depending on which comes first.

However, if you use hot water frequently or have hard water, you may need to replace it more frequently than recommended.

17. Unusual taste in your water


If you detect an unusual taste in your water, it may result from the accumulation of minerals in your pipes, which can also cause other issues in your PUR water filter, such as bacterial growth and clogging of the faucet screens.

To resolve this problem, try flushing out the minerals by running hot water.

18. Leak between the tank and faucet

Leak between the-tank-and-faucet-PUR-Water-Filter-Light-Not-Working

If you spot a leak, it may be due to a leak between the tank and faucet, which can be fixed by tightening the connections.

If this does not solve the problem, it may be necessary to replace the o-rings inside the filter housing.

19. PUR water filter not plugged into an electrical outlet


One of the most common reasons the PUR water filter light may not working is that not plugged into an electrical outlet.

To address this issue, ensure that your water filter connected to an electrical outlet and verify that it is functioning.

20. Air in your pipes

Air in your pipes PUR Water Filter Light Not Working

The air in the pipes can prevent the PUR water filter from working properly.

To fix this issue, turn off the main water supply valve for about 30 seconds and then turn it back on. Open all the faucets for about 30 seconds each to clear any remaining air bubbles in the pipes.

Final Thought

Final Thought PUR Water Filter Light Not Working

To sum up, if your PUR water filter light isn’t working properly, there could be several reasons behind it. These include electrical connection problems, incorrect setup, a tripped circuit breaker or low water pressure.

Another cause could be that the filter has been removed from its base. Fortunately, you can fix these issues by using some straightforward troubleshooting techniques suggested in this guide and get back to having clean filtered drinking water again.

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