Service manual

Problem Possible Cause Solution
The Product Water and Drain
Water lines are reversed.
Correct plumbing.
No drain flow, Drain Restrictor is
clogged.
Clear or replace Drain Restrictor.
The ASO Valve is not closing. Repair or replace the ASO Valve
Components.
New In-Line or Activated Carbon
Pre-filter not rinsed completely.
Flush with several full tanks of
Product Water.
High Total Dissolved Solids
(TDS) in the Product Water
(continued)
The Feed Water TDS has
increased.
An increase in Feed Water TDS will
give a corresponding increase in
Product Water TDS.
The In-Line or Activated Carbon
Pre-filter is exhausted.
Replace Filters.
There is foreign matter in the
Holding Tank.
Clean, flush and sanitize the
system. Replace the filters.
The Product Water and Drain
Water lines are reversed.
Correct plumbing.
Dissolved gassed in the Feed
Water.
Pre-treat Feed Water to remove
dissolved gasses.
Tastes and odors in the Product
Water
Increase in Product Water TDS. See high TDS in the Product Water
section.
Drain tubing is clogged. Clear tubing.
Drain clamp hole is misaligned. Align with hole in the drain pipe.
Drain Water overflows at the Air
Gap Faucet
Excessive drain flow rate. Replace Drain Restrictor.
Adjust Faucet by turning the tee
bar just below the handle to provide
a small amount of free play in
handle when shut off.
Leaks from spout.
O-rings are bad, repair or replace
faucet.
Leaks from base of the delivery
tube.
O-ring is bad, replace O-ring.
Faucet leaks or drips
Leaks from beneath the handle. O-rings are bad. Repair or replace
the faucet.
Fitting leaks in general
Close the Feed Water Ball Valve and relieve pressure before
disconnecting any tubing or replacing any fitting. Before replacing a fitting,
re-cut the tubing and re-insert into the fitting to see if that solves the leak.
If pipe threads are leaking, remove and re-tape with Teflon tape.
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