RO-45 model - No RO water output

The causes of the output problem are listed in the timeframe that you've owned your RO system. The grey background applies to systems in use for under 3 months and the white background applies to systems in use for more than 3 months.

The causes are listed from the most frequent and probable to the least likeliest.

Feed water blocked
Make sure all lines to the RO system and within the RO head are not obstructed
Untangles the lines
Input pressure too low
If your home pressure is within the model's regulation. Make sure you have the right model.
Make sure all the feed valves are fully turned on or exchange for the appropriate model
Wrong Line Installation
Use the RO pictures and the owner's manual to make sure all lines are correctly connected.

Defective Membrane Housing

(Extremely Rare)

Waste water flows non stop down the drain line and no RO water.
Replace the membrane housing
Clogged Pre-filters
See the condition of the first stage filter
Clogged Membrane
ASO Clogged
Check valve clogged
No Tank pressure
Use pressure gauge to measure the pressure in the empty tank. An empty 4 gallon tank should have 5psi and empty 14 gallon tank should have 7psi
Tank bladder ruptured
Locate the pressure valve on the tank to see if water is leaking out. If water is leaking out, then the tank needs to be replaced. Furthermore, a raptured tank tends to be very heavy compared to a regular full tank.

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