Hayward AquaRite Error Code 19: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
19
Brand
Hayward
Product Type
pool_equipment
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code 19 on your Hayward AquaRite indicates that the salt chlorine generator is detecting high voltage in the cell. This typically points to a wiring issue, a failing cell, or a power supply problem. While not immediately dangerous, ignoring it can damage the system.
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Tools You'll Need

How to Fix Error Code 19

  1. Turn Off Power to the System

    Always disconnect power before working on electrical equipment.

  2. Inspect the Cell Wiring

  3. Check the Cell for Damage

    Handle the cell carefully to avoid breaking ceramic plates.

  4. Test the Power Supply

    Use caution when testing live circuits. If unsure, call a professional.

  5. Clean the Cell Plates

    Wear gloves and eye protection when handling acid. Follow manufacturer instructions.

  6. Replace the Control Board (if necessary)

    Electrostatic discharge can damage the board. Use proper grounding.

  7. Reset the System and Test

Parts You May Need

AquaRite cell (generic replacement)
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Control board (generic)
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AquaRite cell (generic replacement)
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Control board (generic)
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AquaRite cell (generic replacement)
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Control board (generic)
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AquaRite cell (generic replacement)
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Control board (generic)
Check Price on Amazon
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When to Call a Professional

If you've checked wiring and cleaned the cell but the error persists, or if you are uncomfortable testing live voltage, call a licensed electrician or pool technician. Also, if the control board needs replacement, a pro can ensure proper installation.

Frequently Asked Questions

Can I still run my pool pump with error code 19?
The system may still run but the chlorine generator will likely stop producing chlorine. Running the pump is safe, but the error indicates a problem that should be fixed to avoid further damage.
What causes high cell voltage in Hayward AquaRite?
Common causes include loose wiring connections, a damaged cell, high input voltage from the power supply, or a faulty control board.
How often should I clean my AquaRite cell?
Clean the cell every 3-6 months or when you notice scale buildup. Regular cleaning prevents voltage issues and extends cell life.
Can a low salt level cause error code 19?
No, low salt typically triggers a different error code (e.g., 121 or -0). Error 19 is specifically voltage related.
Do I need to replace the whole AquaRite system if error 19 appears?
Not necessarily. In many cases, fixing wiring or replacing the cell resolves the issue. The control board is rarely the problem.

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