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Water purifier not dispensing water is a challenging issue caused by various factors. If your device is facing a similar situation, refer to the Mytour article below for answers!
1. Water purifier not dispensing water due to clogged pre-filter or RO membrane
When the pre-filter or RO membrane is not regularly cleaned or replaced, dirt and sediment can accumulate inside. Additionally, it can be caused by the incoming water source containing excessive dirt or impurities. Therefore, the filter or RO membrane may become clogged, resulting in the water purifier not dispensing water.
To remedy this, check the filters and replace them according to the manufacturer's recommended schedule. Especially when the filters or RO membrane are excessively dirty and covered in dust. Also, inspect the incoming water source to ensure clean water with minimal impurities.
>>> Read more: Water purifier leaking - Causes and how to fix it?
2. High pressure valve malfunction
The water purifier may not dispense water due to a faulty high-pressure valve. When the high-pressure valve operates continuously for an extended period, the water pumping capability diminishes. As a result, water won't be pumped into the storage tank.
The most effective solution in this case is to replace the high-pressure valve with a new one for normal usage. If you are not familiar with the water purifier's structure, contact a repair technician or an authorized service center for assistance.
3. Improper drainage valve operation causing no water from the water purifier
The water purifier may not dispense water if the drainage valve operates incorrectly. The most noticeable sign is that when the drainage valve opens, water doesn't flow through the faucet but follows the entire drainage path.
You can remedy this situation by disassembling and reassembling the valve according to the manufacturer's installation instructions.
>>> Check it out: Máy lọc nước không hoạt động: Causes and Solutions
4. Due to depleted compressed air tank
The water purifier's compressed air tank always contains a certain amount of air. However, during usage, this air level decreases, leading to insufficient pressure on the faucet. This results in a situation where no water is dispensed.
To remedy this, the simplest and most effective solution is to pump air into the compressed air tank. If water still doesn't come out, you may need to replace the compressed air tank to fully restore the device's functionality and resolve this issue.
5. Malfunctioning pump in the water purifier
In addition to the mentioned causes, the pump in the water purifier may fail due to prolonged use or lack of oil, resulting in inefficient operation. To easily determine if the pump is functioning effectively, disconnect the inlet hose from the filter membrane to observe the water flow. If the water flow is weak or non-existent, it indicates a pump malfunction.
So, what should you do if the pump is damaged? The answer is simple – you need to replace the pump with a new one to use the water purifier normally.
6. Water purifier not dispensing water due to trapped AIR
Trapped AIR is a condition where air bubbles appear in the water faucet, and water flows extremely weakly. Additionally, users may hear loud noise even after replacing the filter cartridge. This is a common phenomenon when replacing the filter, and you don't release all the air.
To address the issue of the water purifier not dispensing water due to trapped AIR, you need to remove the filter cartridge. Then, release the trapped air inside by removing the valve from the filter cartridge and letting water in to allow the air to escape more easily.
>>> Read more: Máy lọc nước không dùng điện là gì? Có nên mua không?
7. Electromagnetic valve failure causing the water purifier not to dispense water
The electromagnetic valve is also one of the crucial components in the structure of a water purifier. When the electromagnetic valve is damaged, it can result in the inability to close properly or completely. This leads to the issue of no water dispensing from the water purifier.
To address this, you need to remove the electromagnetic valve for cleaning, especially the rubber leaf or the spring section on the valve stem. Alternatively, you may have to replace the valve to continue normal usage.
8. Mechanical valve blockage
According to the operating principle, water passes through the mechanical valve before reaching the RO filter membrane. Then, the waste water from coarse filters 1, 2, and 3 will exit through the mechanical valve. The remaining door number 4 of the mechanical valve will guide the filtered water to the RO membrane. When the mechanical valve is blocked, water cannot move in the correct direction. Users will notice the water purifier not dispensing water.
The cause is sudden changes in water flow pressure, coupled with poor input water quality, making this component prone to blockage. To remedy this, you need to check the mechanical valve and adjust the screw. If ineffective, the best approach is to replace the mechanical valve or inspect the RO membrane.
>>> Read more: Nên hay không cắm điện máy lọc nước thường xuyên?
9. Blocked water hose
As known, the water hose is a crucial component that allows the filtered water to reach the users. If you've checked the electromagnetic valve, high-pressure valve, pump, and found no issues, consider the possibility of a blocked water hose due to prolonged lack of maintenance.
To enable the filtered water to flow out, you need to detach the hose, inspect and thoroughly clean it before resuming usage. If the water hose is torn or broken, rendering it unusable, replace it immediately!
This article by Mytour has shared with consumers 9 reasons and solutions when the water purifier does not dispense water. We hope you can effectively handle the issue if your home device is facing a similar situation. Thank you for reading!
