Like various home and kitchen machines, water purifiers also need regular maintenance and servicing. You should take proper care and maintenance of your water purifier. The regular maintenance and good servicing of RO water purifiers are important for your health and the long life of your water purifier in Chennai. Nevertheless, some common issues do appear in RO water purifiers. Also, check the water purifier price in Chennai.

This post has highlighted 7 common RO problems and their possible solutions.

  1. RO Purifier Not Working
  2. a) The ‘Power On’ indicator of the RO water purifier is off – You need to check if the power switch of your purifier is on/off. In case the switch is on, you need to review if the electricity supply is open or not.

If the switch and electricity supply both are in the correct position, there is an issue with the wiring or the SMPS. You will have to call an RO service expert to diagnose the issue in such a case.

  1. b) The ‘Power ON’ indicator of the RO purifier is on – The first thing you should check is your main valve. If the water supply valve is closed, turn it on and check if the purifier is working.

In case the valve is open, and RO is not functioning, you need to check the water pressure. Most of the RO purifiers won’t function properly if the water pressure is extremely low.

If the RO purifier is still not functioning, this may be because

  • The filters & membranes are jammed and required to be cleaned or replaced
  • An internal part has malfunctioned and needs to be repaired or replaced

Solution: Take a recommended step as mentioned above.

  1. Water Leakage

Water leakage from the RO water purifier is one of the most common issues. Sometimes, you may notice so much water near your RO as the pipe connections are loose, leading to water leaking. You need to check all the pipe fittings are tight and in the right place.

If you see any drips or leakages, you must call the RO expert. The expert will properly check the water purifier to discover the exact cause of the leakage.

Solution: You need to call the RO technician to discover the reason for the leakage.

  1. Offensive Odour or Sour Taste of Water

The RO purifier has no foul odour or bad taste. Although, you can still change the taste or smell while drinking the RO water. The most common reason for the bad smell and bad taste is Chlorine. It can also happen if the filters are not purifying the water accurately. And because of that, there is a foul smell and bad taste in the water.

To avoid this problem, you must change the filters every 12 months. You should remove the purified water if left in the storage tank for more than 2 days.

Solution: You need to change the filters regularly, keep the storage tank clean, and remove all filtered water if left unused for more than 2 days.

  1. Auto Shut-Off Failure

If the water storage tank of the RO water purifier suffices over a limited level, it automatically closes off the filtration procedure.

If the auto shut-off feature is not functioning properly, the purifier will work continuously. It can lead to water overflow from the storage tank.

Solution: You must call an RO expert to fix or change the faulty component.

You must buy good brand RO purifier and check the RO water purifier price in Chennai.

  1. Less Water Flow or Storage Tank Taking Extra Time to Suffice

Every filter in the RO water purifier is designed to filter out particular kinds and sizes of pollutants and impurities. If the filters are not washed or changed on time, these impurities get stuck on the filter surface and form a hard layer on the filter surface, blocking water flow.

This issue arises mostly in areas where water quality is very inadequate.

Solution: Get the filters/membranes replaced.

  1. Vibrations or Noise in RO Purifiers

The RO pump is the most common source of vibrations and noise in any water purifier.

Like any other water pump, RO pumps tend to become noisy over time because of the way they are designed to work. RO pump consists of many parts, like bearings, that move at high speed to create the demanded water pressure for the RO filtration process.

The regular movement and growth in friction can affect the health of these parts, and it can make them noisy and generate high vibrations.

The vibrations and noise can also arise if the RO pump housing is not secured properly.

One more common reason for vibrations and noise in the RO water purifier is loose wires and connecting pipes. If the two filters’ connection pipes are long, there is a chance of breakage. Therefore, all-electric wires and connection pipes should be connected using cable ties to minimize all vibrations.

Solution: You must consult an RO expert to discover the reason and take the necessary action.

  1. Huge Amount of Reject Water

All types of RO water purifiers create reject or wastewater irrespective of make and model. This rejected water have suspended solids and is not suitable for drinking. TDS concentration and salt available in the water are the main cause behind this.

You need to stop unnecessary wastage of water and learn to reuse the RO wastewater.

If your purifier delivers an unusually increased amount of wastewater, then it is a sign of the RO membrane getting jammed. If not changed on time, the RO membrane will choke with all the dissolved solids stuck on its surface.

There is no defined timeframe for changing the RO membrane as it depends on input water quality. If the water supply coming to your house has a high TDS level, you must regularly replace the RO membrane.

Solution: Replace the RO membrane.


You must check the health & safety of your family with pure water. So, you must keep your RO purifier running in good condition for longer, and you must take very good consideration of your RO purifier.

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