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.
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Causes
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Identify
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Solution
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1
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Feed water blocked
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Make sure all lines to the RO system and within the RO head are not obstructed
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Untangles the lines
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2
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Input pressure too low
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If your home pressure is within the model's regulation. Make sure you have the right model.
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Make sure all the feed valves are fully turned on or exchange for the appropriate model
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3
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Wrong Line Installation
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Use the RO pictures and the owner's manual to make sure all lines are correctly connected.
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4
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Defective Membrane Housing (Extremely Rare) |
Waste water flows non stop down the drain line and no RO water.
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Replace the membrane housing
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5
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Clogged Pre-filters
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See the condition of the first stage filter
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6
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Clogged Membrane
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7
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ASO Clogged
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10
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Check valve clogged
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8
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No Tank pressure
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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
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9
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Tank bladder ruptured
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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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