Specifications

Troubleshooting Guide
If a problem cannot be corrected through use of this Troubleshooting Guide and assistance from the factory is required, please
have the following information available:
1. Product water flow rate (directly from module).
2. Concentrate flow rate (from concentrate water outlet of module housing). Pressure relief valve must be closed when measuring
concentrate flow rate.
3. Feed water line pressure.
*4. Product water quality (directly from module).
*5. Reservoir water quality.
*6. Feed water quality.
7. Feed water temperature.
8. Reservoir precharge pressure.
* Check with TDS meter PN D0-4705-04.
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. Bad O-ring on RO membrane. c. Replace O-ring.
d. Shutoff malfunction. d. Replace shutoff.
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. Leakage around membrane O-rings. d. Replace O-rings
e. Plugged capillary tube. e. Replace capillary tube; replace prefilter, if
necessary.
f. Storage tank bladder is ruptured. f. Replace storage tank and check precharge
pressure.
30 Aqua-Cleer
®
/ Good Water Machine
®