• Refer to the Culligan Connect app for diagnosis
• If using the wall power supply, confirm the correct power supply is being used�
• Check all extension cable connections if applicable�
• Check connection at the back of the system�
• If you are using battery power, make sure your battery is charged�
• Make sure you have cold water going to the unit
No Product Water
Check the water supply to the RO to make sure that it is turned on� If you have a Smart RO, it requires power, so make
sure the AC adapter is plugged in or the optional battery is charged�
Not Making Enough Water
The feed water pressure may be low� The system requires a minimum of 40 psi of water pressure to make enough product
water� If the pressure seem low, there won’t be very much water in the storage tank� Check the shut off valve on the
storage tank to be sure it is open�
Constant Running to Drain
The system should run a small amount of water to the drain while making and storing water in the storage tank� It the tank
is heavy, it is likely full and the water to the drain should stop� Your Culligan dealer can check the system to correct the
continual running�
Water Leak
Any time you find water around the unit or hear the leak alarm from a Smart RO, immediately shut-off the water supply
and contact your local dealer�
Water Doesn’t Taste Good
If the taste of the water has changed, turn on the faucet and let it run until you completely drain the storage tank� Allow a
few hours for the storage tank to refill, then taste the water again� If the taste continues, call your local dealer�
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Things to Check Before You Call
