Kenmore 625.347001 User Manual Page 14
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14
-- CARE OF YOUR REVERSE OSMOSIS SYSTEM --
REVERSE OSMOSIS SYSTEM CARE GUIDE
MODEL NO. 625.347001
1. AT LEAST every 6 months, replace the prefilter and postfilter cartridges. Clean or replace the flow control and
screen.
2. Replace the ROmembrane cartridgewhen thepercent rejectionof totaldissolved solids(TDS) isless thanshown
in the specifications (see B, below).
If any of the following occur before the 6 months, replace as directed.
A. Slow Making of ProductWater: Replace the prefiltercartridge.
If the production ratedoes notimprove, replacethe postfiltercar-
tridge and RO membrane cartridge.
C.ChlorineTasteand/orOdor:Replacetheprefilter,postfilterand
RO membrane cartridges.
B. High Total Dissolved Solids (TDS) in Product Water: You can
get a free TDS test through some Sears retail stores or service
departments. If the store or service department does not have a
TDSmeter, you cansend treatedand untreatedwater samplesto
a water analysis lab for testing. It is important to test both the
treated and untreated waterto determinesystem performance. If
the TDS is not within the system’s performance guidelines,
replace the prefilter, postfilter and RO membrane cartridges.
OTHER TROUBLESHOOTING
PROBLEM CAUSE CORRECTION
Chlorine taste and/or
odor in the RO product
water
The ppm of chlorinein yourwater supply
exceeds maximum limits, and has de-
stroyed the RO membrane.
Ifthewatersupplycontainsmorethan2.0ppmofchlorine,addi-
tional filtering of the water supply to the RO is needed. Correct
this condition before doing maintenance on the RO system.
The prefilter is no longer removing chlo-
rine from the water supply.
Replace the prefilter, postfilter and RO membrane cartridges,
flow control, and screen.
Other taste and/or odor Postfilter expended. Replace the postfilter cartridge. If taste and odor persists, re-
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trol, and screen.
Contamination in product water storage. Use sanitizing procedures. Replace the postfilter cartridge.
System makes product
water too slowly
Watersupply tothe ROsystem notwithin
specifications.
Increasewaterpressure,preconditionthewater,etc.,asneeded
to conform before doing maintenance on the RO system.
Prefilter or RO membrane cartridges
plugged with sediments.
Replace the prefilter cartridge.If ratedoesnot increase,replace
the postfilter cartridge, RO membrane cartridge, flow control,
and screen.
System makes lower
amount of product water
than usual
Storage tank air-charge less than 5 --- 7
psi.
Open RO faucet and drain tank until flow slows to a drip. Keep
faucet open and checktank pressure.If low,pressurizeto 6psi.
Close faucet to refill the tank.
High total dissolved sol-
ids (TDS) in product wa-
ter
Watersupply tothe ROsystem notwithin
specifications.
Increasewaterpressure,preconditionthewater,etc.,asneeded
to conform before doing maintenance on the RO system.
RO membrane cartridge expended. Replace the prefilter, postfilter and RO membrane cartridges,
flow control, and screen.
Water leaking from fau-
cet airgap hole
Drain side of faucet airgap (3/8” tubing)
plugged, restricted, or incorrectly con-
nected to drain point.
Inspect and eliminate restriction or plug. Refer to installation
instructions for proper drain connection.
Continual water flow to
drain
Check valve orautomatic shutoffassem-
bly plugged, restricted or parts worn
Clean, repair or replace as needed.
Note: Sanitizing is recommended after servicing inner parts of the system(see page 9).
- Reverse Osmosis 1
- Drinking Water System 1
- -- WARRANTY 2
- -- SAFETY GUIDES 2
- -- TABLE OF CONTENTS 3
- -- 6 STEPS TO INSTALL 4
- A. WATER SUPPLY CONNECTION 5
- B. WATER SUPPLY 5
- -- STEP 3: INSTALL FAUCET 6
- -- STEP 4: INSTALL RO 7
- ASSEMBLY 7
- SANITIZING 9
- PRESSURE TESTING 9
- PURGING RO MEMBRANE 9
- REVERSE OSMOSIS 10
- SCHEMATIC 10
- 11/16” (1/4” tubing) 13
- 3/4” (3/8” tubing) 13
- MODEL NO. 625.347001 14
- OTHER TROUBLESHOOTING 14
- -- REPAIR PARTS 16
- Note: Tubing colors as 18
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