Kenmore 625.381560 UltraFilter 450 Owner's Manual page 24

Cause: The level of chlorine in your water Correction: If the water supply contains more than 2.0 ppm of chlorine,
supply exceeds maximum limits, and additional filtering of the water supply to the Reverse Osmosis is
has destroyed the Reverse Osmosis needed. Correct this condition before doing maintenance on the
membrane. Reverse Osmosis system.
Cause: The prefilter is no longer reducing Correction: Replace the prefilter, postfilter and Reverse Osmosis membrane
chlorine from the water supply, cartridges. See page 20.
Cause: Postfilter expended. Correction: Replace the post filter cartridge. If taste and odor persists,
replace the prefilter cartridge and Reverse Osmosis membrane
Reverse Osmosis membrane cartridge cartridge. See page 20.
expended.
Cause: Contamination in product water Correction: Use sanitizing procedures. Replace pre and post filter cartridge.
storage tank. See pages 16 & 20.
Cause: System contamination. Correction: Sanitize entire system. Call 1-800-426-9345 for instructions.
Cause: Water supply to the Reverse Osmosis Correction: Increase water pressure, precondition the water, etc., as needed
system not within specifications, to conform before doing maintenance on the Reverse Osmosis
system.
Cause: Prefilter or Reverse Osmosis membrane Correction: Replace the prefilter cartridge. If rate does not increase, replace
cartridges plugged with sediments, the postfilter cartridge and Reverse Osmosis membrane cartridge.
See page 20.
Cause: Storage tank air-charge less than I Correction: Open Reverse Osmosis faucet and drain tank until flow slows to a
5-7 psi. drip. Keep faucet open and check tank pressure. If low, pressurize
I to 6 psi. Close faucet to refill the tank.
_ _ in _rO_', _ _ __ _ _ __ _ _ _ __ _ _ __ _ _ __ _ _ __ _ _ __ _ _ __ _ _ _ __ _ _ _....
Cause: Water supply to the Reverse Osmosis Correction: Increase water pressure, precondition the water, etc., as needed
system not within specifications, to conform before doing maintenance on the Reverse Osmosis
system.
Correction: Send treated and untreated water samples to a water analysis
lab 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 pre-
filter, post filter and RO membrane cartridges.
Cause: Missing flow control insert in red drain I Correction: Replace flow control insert. See page 21.
tube or its corresponding port.
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Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com
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