Pool pump, filter, and heater system on a concrete pad with PVC pipes, suitable for pool service and equipment maintenance
HaywardDiagnosticsSalt System

Aqua Trol® Diagnostics Manual

Fix Hayward Aqua Trol CHECK CELL, CHECK SALT, and NO FLOW errors. Official diagnostics manual for above-ground salt chlorinator and flow sensor faults.

Common Salt System Problems This Guide Covers

A pool technician should open this document when the Aqua Trol salt chlorinator displays an error code (CHECK CELL, CHECK SALT, NO FLOW) or exhibits other abnormal operational behavior..

What it helps you resolve

  • Aqua Trol showing CHECK SALT error
  • Salt system displaying NO FLOW
  • Chlorinator not turning on or no display
  • Pump not running with Aqua Trol
  • High or low cell temperature warnings
  • Error code not clearing after reset

When not to use

This document is not for initial installation, routine preventative maintenance, or general operational instructions when no fault is present.

Fault codes covered

CHECK CELLCHECK SALTNO FLOW

Quick diagnosis

Before replacing components, verify the average salt level has been reset if applicable, and ensure the unit has proper power and water flow according to the system's normal operating parameters.

Qualified personnel only. Opening electrical panels, control boards, or equipment enclosures involves dangerous voltages and should only be performed by licensed pool or electrical technicians. Unauthorized service may void your manufacturer warranty. If unsure, contact a qualified professional.

Still seeing issues with your Aqua Trol Diagnostics Manual?

Our certified technicians know every fault code in this document, including CHECK CELL, CHECK SALT, NO FLOW, and can diagnose your Hayward salt system in person across the Oak Island area.

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Common Questions

Hayward Salt System FAQs

What does the CHECK SALT or INSPECT CELL LED mean?

The CHECK SALT or INSPECT CELL LED indicates the salt level is outside the optimal range or the Turbo Cell requires inspection and potential cleaning.

Will a NO FLOW error clear on its own?

No, a NO FLOW error requires resolving the underlying flow issue in the pool system before the error will clear.

What causes the most common fault on the Aqua Trol system?

The manual prominently addresses issues related to incorrect salt levels (CHECK SALT/INSPECT CELL) and insufficient water flow (NO FLOW) as primary diagnostic concerns.

How does this manual differ from an Aqua Trol Owner's Manual?

This Diagnostics Manual is dedicated to troubleshooting specific error codes and operational malfunctions, unlike an Owner's Manual which covers general operation, installation, and routine maintenance.