Service manual
15
Problem Possible Cause Solution
High Total Dissolved Solids (TDS) in
the Product Water (continued)
The Product Water and Drain Water
lines are reversed.
Correct plumbing.
No drain ow, Drain Restrictor is
clogged.
Clear or replace Drain Restrictor.
No drain ow, the drain orice in
the Dispensing Faucet is plugged.
Clear or replace Dispensing Faucet.
The ASO Valve is not closing. Repair or replace the ASO Valve
Components.
New In-Line or Activated Carbon
Post Filter not rinsed completely.
Flush with several full tanks of
Product Water.
The Feed Water TDS has increased. An increase in Feed Water TDS will
give a corresponding increase in
Product Water TDS.
Tastes and odors in the Product Water
The In-Line or Activated Carbon
Post Filter is exhausted.
Replace Filters.
There is foreign matter in the Holding
Tank.
Clean, ush and sanitize the system.
Replace the lters.
The Product Water and Drain Water
lines are reversed.
Correct plumbing.
Dissolved gasses in the Feed Water. Pretreat Feed Water to remove
dissolved gasses.
Increase in Product Water TDS. See high TDS in the Product Water
section.
Amber light on optional water quality
monitor
System not being used for extended
period of time.
Empty storage tank. Wait 15 minutes
for the system to begin making water
and test water quality again.
Filters are plugged or membrane is
fouled or exhausted.
Replace lters and/or membrane.
Drain Water overows at the
Dispensing Faucet
Air Gap is blocked. Clear Air Gap.
Rinse with vinegar for removal of
calcium buildup.
Drain tubing is clogged. Clear tubing.
Drain Clamp hole is misaligned. Align with hole in the drain pipe.
Excessive drain ow rate. Replace Drain Restrictor.
Faucet leaks or drips Leaks from base of the delivery
tube.
O–ring is bad, replace O–ring.
Fitting leaks in general Close the Feed Water Saddle Valve and relieve pressure before disconnecting
any tubing or replacing any tting. Before replacing a tting, re–cut the tubing
and re–insert into the tting to see if that solves the leak. If pipe threads are
leaking, remove and retape with Teon tape.