R.O. DRINKING WATER SYSTEM T.F.C.-300 Installation, Operation & Service Manual - page 13
13
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 flow, Drain Restrictor is
clogged.
Clear or replace Drain Restrictor.
No drain flow, the drain orifice in
the Air Gap Faucet is plugged.
Clear or replace Air Gap Faucet.
The ASO Valve is not closing.
Repair or replace the ASO Valve
Components.
New 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 Activated Carbon Post Filter is
exhausted.
Replace Filter.
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 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.
Drain Water overflows at the Air
Gap 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 flow rate.
Replace Drain Restrictor.
Faucet leaks or drips
Leaks from spout.
Adjust Faucet by turning the tee bar
just below the handle to provide a
small amount of free play in handle
when shut off.
O–rings are bad, repair or replace
faucet.
Leaks from base of the delivery
tube.
O–ring is bad, replace O–ring.
Leaks from beneath the handle.
O–rings are bad. Repair or replace the
faucet.
Fitting leaks in general
Close the Feed Water Saddle 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 retape with Teflon tape.