Giải pháp nước sạch

1. Signs of weak water flow in water purifier

• Water flow weakens after a short time: Initially, the machine can flow about 0.5 - 1 liter of water, then the water flow decreases significantly.
• Less water output than usual: Although pure water still flows from the faucet, the flow is very small, and after a while the water may stop completely.
• No purified water comes out: In severe cases, the water purifier does not provide purified water. When the tap is opened, no water comes out even though the machine is still turned on.

The machine can flow 0.5 - 1 liter then starts to weaken, this is one of the signs to diagnose a weak water purifier.

2. 8 Causes of weak water purifier and how to fix it

2.1. The coarse filter is clogged

The first reason to consider when your water purifier has a weak flow is the rough filter. It is very possible that this part is clogged. The role of rough filters is to remove impurities, mud, sand and substances larger than 5 micrometers. However, because of this, they are very susceptible to dirt, so they need to be checked regularly and replaced with new filters soon.

Signs of recognition

• When the coarse filter has a problem, you can hear the pump making a louder noise than usual. Because when there is a lot of dirt in filter 1, the pump has to work beyond its capacity.
• With coarse filter cores contained in the filter housing transparent, you can see they are very black and dirty. Or more carefully, you can remove the first three coarse filters and check their condition.

Reason

• The main reason is that the coarse filter has been in use for 3-6 months and needs to be replaced. A lot of dirt accumulated during that time clogs the filter holes in the membrane and loses its filtering function.
• Another issue you need to pay attention to is the quality of the input water with a high TDS (total dissolved solids) index in the water.

How to fix

You need to replace the filter cartridges for your machine. If you have experience and the right tools, you can buy genuine filter cartridges and replace them yourself at home. In case you are not sure how to replace or want to ensure the machine is properly maintained, contact a professional. They will check the machine condition, advise the right type of filter cartridge and perform the replacement quickly.

Black rough filter is one of the signs of clogged rough filter core.

2.2. RO filter core is clogged

Signs of recognition

After replacing the coarse filter cores but the water flow is still weak or no water comes out, the RO membrane may be clogged.

Reason

The RO membrane has the function of filtering heavy metal ions, microorganisms, and bacteria. If the input water contains too much of these substances, the membrane can easily become clogged during the first period of use.

How to fix

• With old RO membrane: Replace the filter membrane.
• With newly replaced RO membrane: You can clean it without replacing it.
  • First, turn off the power and lock the pressure tank before removing.
  • Gently remove the RO filter core, also turning counterclockwise. Be careful not to lose a gasket on the top of the RO core.
  • Rinse the RO membrane in clean water, then gently tap both ends for 5 minutes to remove limescale, alum, and dirt. Finally, shake clean and reinstall the RO core into the filter cup.

See more articles: How to clean RO membrane like a professional .

Note:

• You should only flush the RO membrane when the core has been used for less than 1 year.
• Remember you only hit the head of the core and not the gasket and core shaft.
• When removing the filter core from the cup, use pliers to pull the filter core out, and pull gently so that the gasket is not damaged.

If the water flow is weak or no water comes out, the RO membrane may be clogged.

2.3. Pipelines through the cores blocked

The water pipe system plays an important role in transporting water between the filter cores, to the pressure tank and to the faucet for direct use. However, when this pipe is clogged, it can lead to the weak water flow you are experiencing.

Sign of recognition

The water coming out of the faucet is very weak, uneven, or not at all even though the machine is still running.

How to fix

First, check the condition of the pipe. If it is found to be clogged, you should clean the pipe by removing it and rinsing it with water. In case the pipe is damaged or cannot be cleaned effectively, you should replace it with a new one. To maintain long-term performance, you should check and clean or replace the pipe periodically (about 12-24 months).

Clogged water pipes can cause poor water flow.

2.4. The water purifier pump is weak.

The pump plays an important role in transporting water through the filter cores to remove dirt, so when the pump is broken, it can cause the inlet water pressure to be weak, the water will flow weakly or stop flowing completely.

Signs of recognition

To determine, you can remove the water hose to the RO membrane and check the flow. If the water sprays strongly about 3cm, the pump pressure is stable. On the contrary, if the water flows weakly or slowly, it proves that the pump has a problem.

Reason

Pumps tend to weaken over time, especially if they have been in use for a long time. Additionally, damage to components such as blades or seals can also reduce the pump's performance.

How to fix

If the cause is determined to be the pump, you should replace the pump to ensure stable operation. In case you cannot replace it yourself, contact the warranty center or a professional repairman for support.

See instructions for fixing common pump errors in the article: How to fix a water purifier pump at home .

Contact a technician for assistance if you cannot replace the water purifier pump yourself.

2.5. Water purifier valve is clogged

The valve is the part that helps control the flow of water in the filter. When the valve is clogged, water cannot flow through, causing weak water or no water.

Token: Water does not flow from the faucet or flows intermittently.

Reason: Over time, dirt or limescale in the water can build up and clog the valve. The valve can also become damaged due to prolonged use or poor water quality.

How to fix: If you find a clogged valve, the simplest way is to contact the repair center to check and replace the valve if necessary. In case the valve is only slightly clogged, you can remove it and clean it.

You can clean the one-way valve yourself.

2.6. The joint is too tight.

Token When the fitting is over-tightened, water may flow weakly or even stop flowing completely, even though the water purifier is still running.

Reason The connector in the water purifier plays the role of connecting the water pipes to the filter cores, including the raw filter core, RO filter core and functional cores. In particular, the T-shaped connector is often used to divide pure water into different paths through the functional cores. The connector helps to conduct water seamlessly and minimizes water leakage between parts of the system.

When the fitting is over-tightened, it can impede the flow of water, making it difficult for water to circulate or causing water leaks in some locations.

How to fix Check all the connections and make sure they are installed properly. If you find any that are too tight, simply loosen them a little to allow water to flow more freely.

You can tighten the joints a little more.

2.7. Pressure tank is out of gas, not enough gas or punctured

After checking the filter cartridges and if they are fine, you need to look at the pressure tank. It is possible that this part is out of compressed air or has a leak. In case the water purifier does not produce water, the main cause could be a problem with the pressure tank.

Signs of recognition

When checking the air pressure in the pressure tank by pressing the valve head, if the air coming out is weak or there is no air, it proves that the compressed air has run out or there is a leak.

Reason

• Out of compressed air: The water purifier has been used for a long time, the air in the pressure tank is gradually discharged, not enough pressure to push the water out.
• Air Leak: The rubber bladder inside the pressure tank is torn or punctured, causing loss of pressure.

How to fix

To fix this, you can pump more compressed air into the pressure tank. First, turn off the power and remove the pressure tank. Use your hands to unscrew the side of the pressure tank, then use a bicycle pump or similar pump to pump air into it. Be careful not to over-inflate to avoid damaging the rubber bulb inside.

In case the pressure tank is leaking air, open the valve to drain the remaining water in the tank, then close the valve and pump in enough air. When finished, open the valve on the top of the pressure tank again to check. If the water flows out normally, you have successfully repaired it. On the contrary, if the water still does not flow, the rubber bulb may be torn and needs to be replaced.

If you cannot handle it yourself, you should contact a repair center for support and replacement of necessary components, ensuring safety and efficiency during use.

Pump more air into the pressure tank

2.8. You do not turn the faucet all the way on.

Signs of recognition Water flows weakly or very little from the faucet, even though the purifier is working normally.

Reason This error often occurs with people who are new to using water purifiers. When the faucet is not fully opened, the water flow will be restricted, causing the amount of water flowing out of the purifier to be reduced.

How to fix You can check to see if the faucet is turned all the way to the maximum, as there will usually be a symbol indicating the maximum opening of the faucet. If you have turned it all the way and the water is still flowing weakly, the problem may be with other parts of the purifier.

3. Notes when fixing a weak water purifier

Because RO water purifiers have many complex parts, when troubleshooting weak water flow, you need to pay attention to the following issues.

First, you need to identify and eliminate the following causes before starting the repair:

• Weak water source: Your household water source such as the water tank is dry, causing the water pressure to be weak. This leads to the RO filter having a weak flow, which is normal.
• Water supply line is leaking or clogged: It is very possible that the water inlet line of the machine is clogged or leaking somewhere. Check the lines to see if they are kinked or leaking anywhere.

Especially when repairing, remember to always turn off the power to ensure safety!

Note : This article is for those with technical expertise. In case you have tried and implemented the remedies according to the common causes above but still cannot fix the problem of weak water flow or no water, the advice is that you should find a reputable repair unit. In addition, you can also consider buying a new water purifier from a reliable brand such as Mutosi, which uses modern technology, ensures health safety and has a long-term use time.

Contact Pro Care water purifier repair service from Mutosi for quick support.

4. Experience to keep water purifier working stably

Any type of electronic or household appliance, you need to know how to use it to make it durable, beautiful and stable. The same goes for RO water purifiers and hot and cold water filters . Below are some experiences from Mutosi experts to help your home water purifier always work well.

Replace filter core periodically:

• Water filter core number 1: From 3 – 6 months
• Water filter core number 2: From 6 – 9 months
• Water filter core number 3: From 9 - 12 months
• Water filter core number 4 - RO membrane: From 2 - 3 years
• Other functional filters: From 1 - 2 years

Choose a reputable service provider

Choosing a reputable supplier of Japanese quality standard water purifiers will help you feel more secure about product quality as well as future warranty service.

Water status notification

Inform the water purifier supplier of the status so that they can advise on suitable filter cartridges. Especially for water sources containing high levels of lime, alum, etc.

Mutosi Water Purifier - Quality Management and Service according to Japanese standards

When you are wondering which brand of water purifier to buy, in addition to product reputation, customer service is also an important factor of a brand.

Mutosi is considered one of the three best service providers in the electronics and home appliances market in Vietnam today. Coming to Mutosi, you will receive the following incentives:

• Periodically replace the filter core for the machine: Mutosi always supports periodically replacing the filter core for family RO water purifiers , ensuring the best operation, pure output quality and natural sweetness.
• 24-month warranty for electrical components: Applicable to all products imported, assembled, manufactured and officially distributed by Mutosi Joint Stock Company in the Vietnamese market. Nationwide home warranty for water purifiers and hot and cold water dispensers .
• Smart warranty software: With Mutosi electronic warranty software installed on your mobile phone, repair and replacement services will be available within 24 hours in inner-city areas. The software operates on both IOS and Android platforms, and is always available on Appstore and Google Play.

To fix the problem of weak water purifier and ensure clean water quality for your family, regular inspection and maintenance is extremely important. If you cannot handle it yourself, contact a reputable repair unit for timely support. Don't let small problems affect your health and life!