Is your RO water purifier suddenly not filling up the storage tank? You’re not alone. This is a common issue faced by many homeowners using Kent, Aquaguard, and other popular RO systems.
A water purifier that stops filling can disrupt your daily routine and affect the availability of safe drinking water in your home. But don’t worry — most of the causes are easily fixable, especially with the right water purifier service.
In this blog, we’ll walk you through the most common reasons why your RO isn’t filling water and what you can do to fix it.
How to Know If Your RO Purifier Isn’t Filling Properly
Here are some common signs:
- No water flow from the purifier faucet
- Very slow trickle even after several hours
- RO tank remains empty or half-filled
- Strange noises or humming sounds during operation
- Low pressure or no water at all despite electricity and supply being on
If you’re facing any of these issues, it’s time to inspect or book a water purifier service near you.
Common Reasons Why Your RO Isn’t Filling Water
Let’s break down the most frequent issues that cause your RO to stop filling up:
1. Low Incoming Water Pressure
RO systems typically require a minimum inlet pressure of 40–60 PSI to function correctly. If your tap water pressure is too low, the system won’t be able to push water through the filters.
Low pressure could be caused by:
- Municipality supply issues
- Faulty booster pump
- Blocked inlet valve
The solution here is simple: Contact a kent RO service near me or water purifier service in Bangalore to install a booster pump or repair the faulty component.
2. Choked or Clogged Filters
Clogged sediment or carbon filters can slow down the filtration process and block water from reaching the RO membrane. This buildup is common if your filters haven’t been replaced in over 6–12 months.
A clogged filter not only prevents the RO from filling water but also reduces the water quality.
Book a water filter service near me to have the filters cleaned or replaced professionally.
3. Faulty RO Membrane
If the RO membrane is old or damaged, it won’t allow water to pass through efficiently. As a result, the tank will not fill or will fill very slowly.
Most membranes need replacement once every 1–2 years, depending on usage and water quality.
Get in touch with a kent water purifier service to check the membrane and replace it with a genuine one if needed.
4. Faulty or Non-Functional Solenoid Valve
The solenoid valve controls the flow of water into the purifier. If this component fails, it won’t allow water to pass even if everything else is working properly.
Solenoid valve issues are best diagnosed and replaced by a technician from a water purifier shop near me.
5. Malfunctioning Float Valve in the Storage Tank
The float valve in the RO storage tank helps control water input. If the float valve gets stuck or fails, the RO system may think the tank is full — even when it’s empty.
This prevents the tank from refilling.
A simple float valve replacement during a water purifier service can solve the issue.
6. Disconnected or Damaged Pipe Connections
Sometimes, a simple issue like a disconnected pipe or loose joint can stop water from reaching the filters or tank.
This usually happens during relocation or after an improper service. Contact a technician by searching aquaguard service near me or kent RO service near me to inspect and correct the connections.
7. Electrical Issues in the RO System
If your RO purifier runs on electricity, then a blown fuse, faulty SMPS adapter, or internal wiring issue can stop the unit from functioning — including filling water.
A certified technician can easily troubleshoot electrical problems during a water purifier service in Bangalore.
How to Fix an RO That’s Not Filling Water
Here’s what you can do before calling a technician:
Step 1: Check the Inlet Valve
Make sure your water supply to the purifier is on and water pressure is sufficient.
Step 2: Check for Any Loose Connections
Inspect the pipes leading in and out of your RO system. Look for any visible disconnections or kinks.
Step 3: Listen for Sounds
When powered on, your RO should make a humming sound indicating the pump is working. Silence might mean electrical failure.
Step 4: Book a Professional Water Purifier Service
If you can’t identify the issue yourself, the best and safest option is to search water purifier service near me or kent water purifier service and let a technician handle the repair.
How Often Should You Service Your RO to Prevent This?
You should schedule a complete RO service every 6 months to prevent issues like:
- Low water flow
- Water not filling
- Poor water taste
- Leaks or unusual noise
Regular servicing keeps your system running efficiently and saves you from emergency breakdowns.
Choose the Best RO Service in Bangalore
At Clean & Pure Water Purifier, we specialize in:
- Kent RO service and Aquaguard RO repair
- Annual maintenance contracts (AMC)
- Filter and membrane replacement
- Booster pump and electrical repair
- Same-day doorstep water purifier service
We are trusted by thousands of families across Bengaluru for reliable, fast, and affordable RO repair solutions.
Searching water purifier near me or water purifier shop near me? Just call us at 8105270634 and get your RO system up and running in no time.
FAQs
Why is my RO not filling water even when the power is on?
This could be due to a clogged filter, faulty float valve, or damaged RO membrane. Schedule a water purifier service to diagnose and resolve the issue.
How long should it take for an RO tank to fill?
Typically, a standard RO tank takes 30–60 minutes to fill. If it’s taking longer or not filling at all, filters or other components may need replacement.
Is low water pressure a reason for RO not filling?
Yes. RO systems need 40–60 PSI pressure to function efficiently. Low pressure will prevent the tank from filling.
Can I fix RO water filling problems myself?
You can check basic things like inlet valve, water pressure, and power supply. But for internal issues, always consult a water purifier service near you.