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PUR Water Filter Troubleshooting: Know Common Problems Here

Fact checked by Stephen Conklin

pur water filter troubleshooting

Are you having problems with PUR water filter at home? Water filters are life-saver devices that help us consume safe drinking water. But sometimes water filters don’t work perfectly. Hence, we encounter common problems like water leakage and clogging.

PUR water filters are known to reduce 70 contaminants in our drinking water. Even so, they aren’t an exception to water filtration issues, which are often inevitable. This article will discuss PUR water filter troubleshooting tips to help you fix your faulty water filter.

Table of Contents

PUR Water Filters Troubleshooting: Most Common Problems


1. PUR Water Filter Light Not Working

Most water filter models have an indicator light to determine their lifespan. A green light means that your filter unit is working efficiently. The yellow indicator indicates that you need to replace the filter soon. Lastly, the red light is a sign that you need a replacement.

A dirty filter affects the indicator light, causing it to blow out temporarily. A simple cleaning can solve this issue right away.

In addition, according to PUR, the light may not be working because it may have gone to sleep mode. In this case, press and hold the reset button for five seconds to reset the light.

A PUR filter light not working doesn’t always mean that the filter unit itself is damaged. If your water filter stubbornly displays a red light even after trying the previous steps, the electronic circuit needs to be replaced already.

2. PUR Water Filter Leaking

If there are leaking issues with the water filter, the first aspect we think of is incorrect installation: loose connection, incompatible adapter, ill-fitting O ring, damaged filter, and many more.

The first thing you could do is to take off the filter and ensure that it includes the rubber seal and that this seal is clean. Reinstall the filter to inspect how the pieces are linked together and tighten the connection securely.

You should place the filter in the center and align the remaining parts properly. Then, the water outlet must be at the bottom part of the unit. Generally, improper installation causes PUR water filter leaking from top.

3. PUR Water Filter Slow Flow

If your residential water comes from a well, the slow flow might happen because the water is dirty. Therefore, the water filter takes time to eliminate the contaminants, resulting in a longer filtration time.

If you’re using city water yet the problem still occurs, you might need to consider buying a plastic washer from a hardware store. Why do you need one? There are two curved wedges inside the filter responsible for holding the filter apart from its connection.

If they are too short, they could restrict water flow. You can insert a plastic washer between these curve edges to allow more space for a proper water flow.

4. PUR Filter Clogged

It is natural for water filters to get clogged now and then because they filter various harmful particles and sediments from our home water. The question is, how do we unclog our PUR water filter?

Put the filter into a glass of water and let it sit for a day. If you see debris, it means the PUR filter is clogged. The water that flows through your water filter also flows through these focused specks of dirt. Thus, regular cleaning of the filter will eradicate this problem.

5. PUR Water Filter Low Pressure

A decrease in water filter pressure is sometimes linked to slow water flow and clogged water filter issues. If you suspect these two signs, our first go-to action is to clean the water filter thoroughly.

An unclean water quality source is also the main contributor to low-pressure water. But you can increase the water pressure by using a 3-stage PUR water filter.

The three stages are :

  • The first stage includes a layer that traps sediments.
  • The second stage involves removing water contaminants.
  • The last stage filters out natural minerals to make water taste better.

PUR Water Filter Installation


PUR water filters may not work due to improper installation. Hence, users should make sure their product is set up correctly.

The most common types of PUR filters are the faucet filter system and pitcher filter. Homeowners can install these filters by following the simple steps below.

For Faucet Filter System

  • Wash the new faucet filter model in cold water for 5 minutes to remove dust and dirt in the filter that might have accumulated during shipment.
  • Twist and detach the aerator on the faucet. If you’re having difficulty unscrewing it with your bare hands, you can also use pliers.
  • Find the right size of the adapter and put the rubber washer into the threaded end of the adapter, then attach the adapter into the faucet. Don’t forget to fully hand-tighten this part to prevent leaks.
  • Unscrew the top of the filter by rotating it counterclockwise and set it aside
  • Take the filter cartridge out of the packaging and insert it into the filter unit. You’ll see an alignment arrow on the cartridge with the PUR logo in front of the filter unit.
  • Reattach the top cover of the filter unit and close it tight.
  • Mount the PUR unit onto the adapter inserted to the faucet by thrusting it until you hear a snapping sound. It means that the filtration unit is in place.
  • PUR water faucet filter troubleshooting is the last thing to do. Run the water through the filter for about 5 minutes. Once completed without a problem, the filter unit is now ready to use.

For Pitcher Filter

  • Get a clean container and fill it with cold water. Fully submerge the new water filter for 15 minutes. This process will prevent excess carbon from mixing with water once everything’s set up.
  • Rinse the new filter in running cold water from the faucet for 10 seconds. After that, shake it out to ensure no more water is inside and let it air dry.
  • Screw the filter in the middle of the pour tray clockwise until you hear it click into place.
  • Place the pour tray into the pitcher or dispenser and cover it with a lid.
  • Pour cold water into the pour tray within the pitcher or dispenser reservoir and allow it to drain.
  • Never use hot water exceeding 100 degrees Fahrenheit or 38 degrees celsius as it may damage the filter.


In this article, we have discussed how to conduct proper PUR water filter troubleshooting. Keep in mind that addressing the root cause of water filter problems can get your filters back in working condition faster.

Buying a new water filter should be our last resort. I hope that you gained many insights about PUR water filters that help you fix your unit the next time you encounter problems. If you have any questions or suggestions, feel free to comment down below!

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