Reverse Osmosis - Lights Are Not Working on Your Filtration System

During normal operation, the green light should flash only when dispensing water. If the light continues to flash when water is not being dispensed, the system most likely needs service.

 

Diagnosing Lights That Are Not Working on a Reverse Osmosis System

Check for the following issues if the lights are not working on your RO system.

 

Wire to the Faucet Is Disconnected

There is a set of small wires that go from the electronic monitor to the faucet base lights. Locate the monitor that consists of a white box with 4 tubes attached. Follow the wires to the plastic connectors that are 12 inches apart from the monitor. Check that the connector is plugged in tight.

 
  • On the PNRV18 model, the tank is on the bracket on the side of the tank.
  • On the PNRV12 model, it is mounted on the cabinet wall near the appliance.
  • If the Premium Filtration (Reverse Osmosis) system is located in the basement, there will be extensions with several connectors. You must check them all.

Batteries Are Installed Backwards, Not Installed or Dead

  • Locate the electronic monitor and remove the cover. There are snaps on each side.If the batteries are missing or dead, install four fresh AA 1.5 volt batteries.
  • If the batteries are installed incorrectly, look at the diagram on the system's case showing proper installation. The negative side of the battery should be pointing out towards the spring.

Tank Is Almost Empty

  • When the system indicates a high usage and the tank is almost empty, the water flow may not be high enough to turn the light on. Allow the tank to refill for approximately four hours. Then, check to see if the lights are working.

Testing the System

  • You can test to see if your system is functioning by dispensing water. The green light should flash within 10 seconds.
  • If the green light flashes but you are not dispensing water, it may be due to the fact that the appliance is connected to a refrigerator icemaker/dispenser. If the icemaker calls for water, the green light will flash, or if water is being dispensed from the dispenser the light will flash too.

Note: The batteries should be changed every six months along with the filters.

 

Additional Support

Should you have additional questions regarding your reverse osmosis system, you can reach out to our Innovations Team directly at 1-800-952-5039 (option 1) from 8:00 AM to 6:00 PM, EST, Monday through Friday.