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Troubleshooting Guide - Whirlpool WHER12 Installation And Operation Manual

Reverse osmosis drinking water system
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Troubleshooting
Guide
REVERSE
OSMOSIS
SYSTEM
CARE GUIDE
MODEL
NOs. WHER12
and WHER18
1, AT LEAST every 6 months, replace the prefilter and postfilter cartridges or when yellow LED flashes.
2. Replace the RO membrane cartridge when the percent rejection of total dissolved solids (TDS) is less than shown in the specifications
(see B, below) or when red LED flashes.
3, Replace the batteries once per year.
If any of the following occur before the 6 months, replace as directed.
A. Slow Making of Product Water: Replace the prefilter cartridge. If the production rate does not improve, replace the post filter cartridge
and RO membrane cartridge.
B. High Total Dissolved Solids (TDS) in Product Water: Send treated and untreated water samples to a water analysis lab for testing.
tt 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.
C, Chlorine Taste and/or Odor: Replace the prefilter, post filter and RO membrane cartridges,
OTHER
TROUBLESHOOTING
CORRECTION
PROBLEM
Chlorine taste and/or odor
in the RO product water
Other taste and/or odor
CAUSE
The ppm of chlorine in your water supply
exceeds maximum limits, and has de-
stroyed the RO membrane.
The prefilter is no longer removing chlo-
rine from the water supply.
Post filter expended.
RO membrane cartridge expended.
Contamination in product water storage.
Water supply to the RO system not with-
in specifications.
tf the water supply contains more than 2.0 ppm of chlorine, addi-
tional filtering of the water supply to the RO is needed. Correct this
condition before doing maintenance on the RO system.
Replace the prefilter, post filter and RO membrane cartridges.
Replace the post filter cartridge. If taste and odor persists, replace
the prefilter cartridge and RO membrane cartridge.
Use sanitizing procedures. Replace the post filter cartridge.
System
makes
product
Check water pressure, if below listed requirement, contact a li-
water too slowly
censed plumber. Precondition the water, etc., as needed to con-
form, before doing maintenance on the RO system.
Prefilter or RO membrane
cartridges
Replace the prefilter cartridge. If rate does not increase, replace
plugged with sediments,
the postfilter cartridge and RO membrane cartridge.
System
delivers
lower
Storage tank air-charge less than 5 - 7
Open RO faucet and draintank untilflowslowstoadrip.
Keepfau-
amount of product water
psi when tank is empty,
cet open and check tank pressure. If low, pressurize to 6 psi. Close
than usual
faucet to refill the tank.
High total dissolved solids
Water supply to the RO system not with-
Increase water pressure, precondition the water, etc., as needed
(TDS) in product water -
in specifications,
to conform before doing maintenance on the RO system.
flashing red LED
RO membrane cartridge expended.
Replace the prefilter, postfilter and RO membrane cartridges, flow
control, and screen.
Water leaking from faucet
Drain side of faucet airgap (3/8" tubing)
Inspect and eliminate
restriction or plug. Refer to installation
airgap hole
plugged, restricted, or incorrectly con-
instructions for proper drain connection.
nected to drain point.
Continual
water flow to
Check valve or automatic shutoff as-
Clean, repair or replace as needed.
drain
sembly
plugged,
restricted
or parts
worn
Faucet LED indicator light
Batteries dead.
Replace with new batteries.
does
not function
after
battery change
Batteries installed incorrectly.
Install batteries correctly.
Static protection
device was not dis-
Remove batteries for a minimum or one hour and then reinstall.
charged.
Continual
water flow to
Missing flow restrictor in red drain tube
Replace flow restrictor.
drain and no product wa-
or its corresponding
port.
ter
Check ball assembly not seating.
Clean or replace check ball assembly.
NOTE:
Sanitizing
is recommended
after
servicing
inner parts
of the
system.
See "Sanitize,
Pressure
Test and
Purge"
section.
2O

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Wher18