What are the common error codes on the Waterway ClearWater In-Line Chlorinator?

Common error codes include: Below 1 ppm, Above 2 ppm, Calcium Deposits. See the troubleshooting section for details on each.

Waterway ClearWater In-Line Chlorinator Specs, Parts & Error Codes

Chlorination
Chlorine Output	Slow-dissolving Trichlor or Bromine tablets; never mix the two chemicals
Operating Target	Adjust feed after 1–2 days; below 1 ppm use a higher setting, above 2 ppm use a lower setting
Water Balance	pH 7.2–7.6; total alkalinity 80–100 ppm
Physical
Plumbing Connection	2.5 in. spigot and 1.5 in. female pipe thread; accepts 2 in. PVC or 1.5 in. PVC with reducer 421-4070
Dimensions	17.6 in. high × 11 in. wide × 6.9 in. deep
Installation Location	Vertical in the return line between the pool and the circulation equipment
Material Restriction	Not for use in copper plumbing

Manual supports both 2 in. and 1.5 in. PVC return plumbing.
The operating instructions provide specific residual and water-balance targets.
Common internal service parts are individually listed with Waterway part numbers.

Must be mounted vertically and is not approved for copper plumbing.
A corrosion-resistant swing check valve is required between a heater and the chlorinator.
Trichlor and Bromine must never be mixed, and calcium hypochlorite, shock, algaecide, oil, or grease must not be placed in the feeder.

Below 1 ppm

After allowing the system to stabilize for 1–2 days, try a higher control setting.

Above 2 ppm

After allowing the system to stabilize for 1–2 days, try a lower control setting.

Calcium Deposits

The manual identifies calcium deposits as a sign of high pool or spa pH; correct pH to 7.2–7.6 and clean the feeder parts.

Part	Part Number	Description
Lid	`519-1167`	Replacement chlorinator lid.
Lid O-Ring	`805-0348V`	Replacement lid seal.
90-Degree Elbow	`411-1170`	Internal elbow listed in the parts table.
Filter Screen	`519-1400`	Internal feeder screen.
Check Valve Assembly	`600-1290`	Internal check valve assembly.
Stem Assembly	`600-1287`	Replacement stem assembly.
2 in. × 1.5 in. Reducer	`421-4070`	Reducer for a 1.5 in. PVC installation.
Bracket / Modular Accessory Base	`550-6700`	In-line chlorinator support bracket and ClearWater modular accessory base.