Whirlpool Reverse Osmosis Troubleshooting


If you have been using your Whirlpool reverse osmosis system for some years without any issues, and suddenly you start facing a problem, you need to identify the first root of it. The different parts of RO work together to give clean water. Whirlpool reverse osmosis troubleshooting works efficiently to eliminate and fix the issues you may be facing. Our Whirlpool reverse osmosis manual gives you a complete guide on possible struggles and suggests solutions.

Things To Remember Before Installing Whirlpool Reverse Osmosis System

  • It may take 1-4 hours before a maximum possible flow is available from the faucet
  • Water pressure from reverse osmosis faucet will be less than common faucet
  • The faucet can be mounted in an existing hole or new hole can be drill
  • The unit can be installed remotely

Tools Needed For Installation

Tape measure; Adjustable wrench; Philips screw driver; flathead screwdriver; drill and pipe wrench.

Overview Of The Installation Process

First, read the entire Whirlpool reverse osmosis manual before starting installation. There are seven steps for Installing reverse osmosis manual.

  • Install Cold water supply fitting
  • Install drain adapter
  • Install reverse osmosis assembly
  • Install storage tank
  • Install reverse osmosis faucet
  • Connect tubing
  • Sanitize, pressure test and purge system

Common Whirlpool Reverse Osmosis System Problems

  • Chlorine taste in water
  • Water pressure slowing down  
  • LED light does not function after the battery charge
  • Water leakage 

This Whirlpool reverse osmosis troubleshooting guide will help you solve every possible problem.

Chlorine Taste In Water

The prefilter and postfilter should be changed every 6 months. This will protect the RO membrane from being destroyed by chlorine.

Prefilter And Postfilter Cartridge Replacement

  • Remove the prefilter cartridge (turn to the left) from the filter head. Then remove the post filter cartridge.
  • Remove cartridge in the proper manner
  • Install new cartridge in a reverse manner, post filter first
  • Remove and replace the timer battery
  • Remove the reverse osmosis system. For detailed instructions visit Whirlpool reverse osmosis manual

Water Pressure Slowing Down

There are various reasons, due to which Whirlpool reverse osmosis water flow slows down.

  • Blockage in the reverse osmosis reverse filter
  • Storage tank air pressure less than 5-7 psi
  • Breakage of tank bladder in RO system
  • Kink in the water line

Blockage In The Reverse Osmosis Reverse Filter

The RO membrane cartridge depends mostly on the PH and hardness of the water. Higher PH water weakens the cartridge membrane and causes leaks. It’s mandatory to change Reverse Osmosis Cartridge when the water quality drops.

 Otherwise, water taste starts changing, and Whirlpool reverse osmosis water flow slows down. The only solution to this problem is changing your filter every six months and sticking to your schedule.

Storage Tank Pressure

If your storage tank pressure is less than 5-7 psi. Open reverse osmosis faucet and drain the tank until the flow slows to a drip. Keep the faucet open and check tank pressure.

The tank air pressure should be 7-8 psi if there is no water in the tank. You can use an air pressure gauge to check the tank air pressure.

Breakage Of Tank Bladder In Ro System

If you get one cup of water at normal pressure before it slows to trickle. Then there is a possibility your tank bladder is broken. Sadly, the only solution to this problem is changing the entire storage tank.

Kink In The Water Line

The kink in the water line will slow down the flow of water. Check your water line to ensure it’s working properly. During this also check the water supply valve, whether it’s fully open or not. 

The Led Light Does Not Work

There are only two reasons for the LED light not to work. The battery is dead or not correctly installed. If the battery is not installed properly, check Whirlpool reverse osmosis manual.

Water Leakage 

Water Leakage From Faucet Air Gap Hole

These leaks are common in the new system. Water runs from the air gap to the drain due to gravity only. Leaving too much tubing on this connection is the most common installation error. If the tube under the sink is not as straight as possible to the drain, water will come out of the faucet air gap, especially with declined and inclined connections.

The best way to prevent Whirlpool reverse osmosis leaking from the faucet air gap hole is to follow installation instructions from Whirlpool reverse osmosis manual.

There are various options to install a Reverse osmosis drinking water system. It’s up to you where you are going to install your system. However, check the size and position of the item for proper installation on your desired location.

  • Under the sink
  • Remote location

Water Leakage At Other Parts

If the leak is from other parts, check the following:

Mostly in-house Whirlpool reverse osmosis leaking is related to o-ring. It gets damaged while changing filters. It’s always good to have an extra pair of o-ring and silicon.

The end of the tube may not cut square. Therefore, to check this feed water angle valve and tank valve need to be turned off. Then Turn on the water tab to release any remaining pressure in the system. Remove the tube and cut 1/4 with the help of a cutter, as much straight as possible. Place the freshly cut tube into the connect fitting. Turn on the valve and check for leaking.

Whenever the tube is inserted, then release from fitting. The tube gets scratched, and with time, scratches become bigger, and o-ring cannot control leaking. So, better you replace any scratched or torn tubing.

However, the best way to prevent Whirlpool reverses osmosis leaking is to follow steps in Whirlpool reverse osmosis manual.


It is strongly advised that you follow maintenance instructions and have your water test every 6 months to make sure the system is working properly. Maintenance is the best way to prevent any sort of problem. Although Whirlpool reverse osmosis troubleshooting guide covers all your problems.

Whirlpool Reverse Osmosis Troubleshooting
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Whirlpool Reverse Osmosis Troubleshooting
Are you facing problems with your Whirlpool Reverse Osmosis System? This troubleshooting guide suggests solutions to every problem you may face.
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