Safeway water 4 Stage Ro, Installation & Maintenance Manual, Page: 13 / 16

Troubleshooting Guide
If a problem cannot be corrected through the use of this troubleshooting guide :
• Serial #
• Model #
4. External leakage.
a. Tubing not fully seated in fitting a. Check all fittings for tightness.
b. Tubing abraded in seal area. b. Recut tubing and redo connection.
5. Overflow at faucet
air gap (gurgling
sounds).
a. Concentrate tubing plugged. a. Clean concentrate tubing of debris.
b. Concentrate tubing not in continuous
downward slope.
b. Eliminate loops or low spots in tubing.
c. Obstructed home drain pipe. c. Free obstruction.
6. Foaming at faucet tip. a. Storage tank is positioned on side
(Dissolved air cannot escape.)
a. Place tank in vertical position.
7. Foaming at air-gap a. Concentrate tubing connected to same
drain line as dishwasher, etc.
a.Find different drain for system.
b. When sink is full of soapy water and plug
is pulled, can back up at air-gap.
b.Obstructed home drain, free obstruction.
c. Obstructed home drain. c. Free obstruction.
Problem Possible Cause Remedy
1. Insufficient quantity
of product water
available to service.
a. Service greater than unit’s specified output. a. Use optional large tank for more storage
capacity.
b. Insufficient feed water flow. b. 1. Clogged shut-off valve or feed tubing ;
clean out or replace. 2. Clogged prefilter;
replace. 3. Clogged manifold; clean or
replace.
c. Insufficient feed water pressure c. 1. Same as (b) above. 2. Change in line
pressure; install booster pump.
d. Increase in feed water TDS. d. 1. Same as (a) above.
2. Install booster pump.
e. Reduced feed water temperature. e. Same as above.
f. Plugged prefilter. f. Replace filter element.
g. Plugged polishing filter. g. Replace polishing filter.
h. RO membrane fouled with sediment. h. Replace RO membrane and prefilter
elements.
i. Shutoff malfunction. i. Clean or replace shutoff.
2. Poor product water
quality.
a. All of (1) above except (a) and (e). a. All of (1) above except (a), (e), and (g).
b. RO membrane filter worn out. b. Replace RO membrane.
c. Shut off malfunction. c. Replace shut off
3. Bad tasting product
water.
a. Decrease in product quality; see (2) above. a. Same as (2) above.
b. Foreign matter in storage tank. b. Clean, sanitize, and flush storage tank.
c. Polishing filter exhausted. c. Replace polishing filter
d. Plugged capillary tube. d. Replace capillary tube; replace prefilter, if
necessary.
e. Storage tank bladder is ruptured. e. Replace storage tank and check
precharge pressure.
I Installation & Maintenance Guide 11