Troubleshooting - North Star NSRO42C4 Installation And Operation Manual

Problem: Chlorine taste and/or odor in the RO product water.
Cause: The level of chlorine in your water supply
exceeds maximum limits, and has
destroyed the Reverse Osmosis mem-
brane.
Cause: The prefilter is no longer removing chlo-
rine from the water supply.
Problem: Other taste and/or odor.
Postfilter expended.
Cause:
Cause: Reverse Osmosis membrane cartridge
expended.
Cause: Contamination in product water storage tank. Correction:
Cause: System contamination.
Problem: System makes product water too slowly.
Cause: Water supply to the Reverse Osmosis sys-
tem not within specifications.
Cause: Prefilter or Reverse Osmosis membrane
cartridges plugged with sediment.
Problem: System makes lower amount of product water than usual.
Cause: Storage tank air-charge less than
5-7 psi.
Problem: High total dissolved solids (TDS) in product water
Cause: Water supply to the Reverse Osmosis sys-
tem not within specifications.
Cause: Plugged drain flow control insert.
Problem: Continual water flow to drain and low or no water production.
Cause: Missing flow control insert in drain port.
Problem: Faucet LED indicator light does not function after battery change.
Cause: Battery dead.
Cause: Battery installed incorrectly.
Cause: Electronic faucet monitor cable not connect-
ed to RO system.
Problem: Faucet LED continues to flash yellow after battery change.
Cause: Electronics were not properly reset when
battery was changed.

Troubleshooting

If the water supply contains more than 2.0 ppm of chlorine, addition-
Correction:
al filtering of the water supply to the Reverse Osmosis is needed.
Contact your local water supplier. Correct this condition before doing
maintenance on the Reverse Osmosis system.
Correction: Replace the prefilter, postfilter and Reverse Osmosis membrane
cartridges. See Page 20.
Replace the postfilter cartridge. If taste and odor persist, replace the
Correction:
prefilter cartridge and Reverse Osmosis membrane cartridge. See
Page 20.
Use sanitizing procedures. Replace prefilter and postfilter cartridges.
See page 16.
Sanitize entire system. Call 1-800-972-0135 for instructions.
Correction:
Increase water pressure, precondition the water, etc., as needed to
Correction:
conform before doing maintenance on the Reverse Osmosis sys-
tem.
Correction: Replace the prefilter cartridge. If rate does not increase, replace the
postfilter cartridge and Reverse Osmosis membrane cartridge. See
Page 20.
Open Reverse Osmosis faucet and drain tank until flow slows to a
Correction:
drip. Keep faucet open and check tank pressure. If low, pressurize
to 6 psi. Close faucet to refill the tank.
Increase water pressure, precondition the water, etc., as needed to
Correction:
conform before doing maintenance on the Reverse Osmosis sys-
tem.
Send treated and untreated water samples to a water analysis lab
Correction:
for testing. It is important to test both the treated and untreated
water to determine system performance. If the TDS is not within the
system's performance guidelines, replace the prefilter, post filter and
RO membrane cartridges.
Correction: Replace drain flow control insert. See page 21.
Correction: Make sure flow control insert is in place. See page 21.
Correction: Replace with new battery. See Page 12 or 18.
Reinstall battery correctly. See Page 12 or 18.
Correction:
Correction: Plug cable into phone jack on RO manifold.
Reset the electronics. See Page 12 or 18.
Correction:
22