
A clogged water filter is a common issue during usage. This problem can be easily resolved at home if the root causes are identified accurately. Refer to the article below by Mytour to discover 5 reasons and remedies for dealing with a clogged water filter!
1. Signs of a Clogged Water Filter
One of the most noticeable signs of a clogged water filter is the absence of water flow from the faucet, sometimes accompanied by unusual sounds. Additionally, you may easily observe no wastewater draining despite the water filter still being operational.
2. Causes and Remedies for a Clogged Water Filter
2.1. Clogged Filter Cartridge
Common Causes and Solutions for Clogged Water Purifiers

In the filtration system of RO water purifiers, there are typically 3 coarse filter cores, RO membrane, and functional filter cores. After a period of use, these filters will accumulate dirt, impurities... if not cleaned or replaced regularly, it will reduce the water filtration efficiency and cause the water purifier to clog. This can lead to impure, dirty, and unsafe water output.
2.2. Weak or Malfunctioning Pump
The pump is one of the crucial components of a water purifier. It is responsible for creating suction force to ensure stable circulation of the inlet water.
However, with prolonged use, the pump is prone to becoming weak or malfunctioning, resulting in the failure to suction water through the filtration system. As a result, the water purifier has no water output.

Solution: Check the condition of the water pump to see if it is weak or burnt out, and proceed with repairing or replacing the pump if necessary.
2.3. Depleted Air Pressure Tank
The air pressure tank of the water purifier is responsible for creating pressure to push the stored water up to the stable faucet. When the rubber bladder inside the tank is depleted of air pressure, it will cause the water purifier to produce little to no water output, or slow water flow. These are all signs indicating that the water purifier is clogged.

Solution: In this case, you need to remove the air pressure tank and refill the bladder with air using a specialized air pump.

Similar to the pump, the high-pressure valve is also an important component in the structure of the water purifier. The high-pressure valve regulates the water supply in the storage tank to ensure stability.
When the tank is full, the valve will automatically cut off the power to the pump to prevent water overflow, ensuring the longevity of the machine. If the high-pressure valve is damaged and cannot re-engage after power cutoff, it will prevent water from being pumped into the storage tank, leading to the water purifier malfunctioning, with no water output.
When the high-pressure valve is damaged, you need to check and replace the valve to fix the water purifier clogging issue, avoiding prolonged unaddressed problems which may waste energy.
2.5. Blocked Water Faucet
The majority of water purifier clogs are due to a blocked faucet, causing purified water not to flow out for your use. Situations like foreign objects or insects getting stuck inside the faucet are common causes of faucet blockage.
Solution: You need to remove the faucet to check for any foreign objects stuck inside. If you cannot remove them, replace the faucet with a new one compatible with the water purifier.
3. Tips to Avoid Clogging on Water Purifiers
- Regularly clean and replace the water filter cartridges as recommended by the manufacturer to ensure the efficient operation of the machine
- Keep the faucet area clean, avoid rotating or bending the faucet too forcefully
- Perform routine maintenance of the equipment to quickly check for and identify problems, and have quick solutions
- If you are not skilled to troubleshoot water purifier issues, contact the warranty center or professional technicians for assistance

The article above from Mytour has shared with you the causes and solutions for water purifier clogging issues. We hope through this article, you will promptly resolve this problem for your device effectively at home. Thank you for following!