Kenmore 625.385720 Other Troubleshooting, Correction, Care Of Your Reverse Osmosis System, Cause

- CARE OF YOUR REVERSE OSMOSIS SYSTEM -

REVERSE OSMOSIS SYSTEM CARE GUIDE

MODEL NOs. 625.385700 & 625.385720

1.AT LEAST every 6 months, replace the prefilter and postfilter cartridges or when red 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).

3.Replace the battery 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. tf the production rate does not improve, replace the post filter car- tridge and RO membrane cartridge.

B. High Total Dissolved Solids (TDS) in Product Water: You can get a free TDS test through some Sears retail stores or service departments, tf the store or service department does not have a TDS meter, you can 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 prefilter, post filter and RO membrane cartridges.

C. Chlorine Taste and/or Odor: Replace the prefilter, post filter and RO membrane cartridges.

OTHER TROUBLESHOOTING

PROBLEM CAUSE CORRECTION

Chlorine	taste	and/or	The ppm	of chlorine	in your	water supply
odor in the RO product			exceeds	maximum	limits,	and has de-
water			stroyed the RO membrane.
			The prefilter is no longer removing chlo-
			rine from the water supply.
Other taste and/or odor			Post filter	expended.
			RO membrane cartridge expended.
			Contamination in product water storage.
System	makes	product	Water supply to the RO system not within
water too slowly			specifications.
			Prefilter or RO membrane cartridges
			plugged	with sediments.

System makes lower Storage tank air-charge less than 5 - 7

amount of product water psi. than usual

High total dissolved sol- Water supply to the RO system not within ids (TDS) in product wa- specifications,

ter RO membrane cartridge expended.

Water leaking from fau- Drain side of faucet airgap (3/8" tubing)

cet airgap holeplugged, restricted, or incorrectly con- nected to drain point.

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, re- place the prefilter cartridge and RO membrane cartridge.

Use sanitizing procedures. Replace the post filter cartridge.

Increase water pressure, precondition the water, etc., as needed to conform before doing maintenance on the RO system.

Replace the prefilter cartridge. If rate does not increase, replace the postfilter cartridge and RO membrane cartridge.

Open RO faucet and drain tank until flow slows to a 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 conform before doing maintenance on the RO system,

Replace the prefilter, postfilter and RO membrane cartridges, flow control, and screen.

Inspect and eliminate restriction or plug. Refer to installation instructions for proper drain connection.

Continual	water	flow to	Check valve		or automatic shutoff assem-		Clean, repair or replace as needed.
drain			bly plugged,		restricted or parts worn
Faucet	LED	indicator	Batteries	dead.			Replace	with new batteries.
light does not function af-
ter battery change			Batteries	installed		incorrectly.	Install batteries correctly.
Continual	water	flow to	Missing flow restrictor in red drain tube or				Replace	flow restrictor.
drain and no product wa-			its corresponding			port.
ter
Faucet	LED	indicator	Filters needreplacing.				Change	filters.

light flashing red

Note: Sanitizing is recommended after servicing inner parts of the system(see page 11).

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Problems, Questions? Call 1-800-426-9345 Kenmore Water Line