Hayward Pool Equipment Error Code 17: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
Error Code
17
Brand
Hayward
Product Type
pool_equipment
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code 17 on your Hayward AquaRite salt chlorine generator indicates the water temperature is too low (below approximately 50°F or 10°C) for safe operation. This is a safety feature to prevent damage to the cell. Usually, the issue is simply cold water, but it can also stem from a faulty temperature sensor or low water flow.
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Tools You'll Need

How to Fix Error Code 17

  1. Check Pool Water Temperature

  2. Inspect Water Flow

    Turn off the pump before cleaning baskets.
  3. Clean the Cell

    Wear gloves and goggles when handling muriatic acid.
  4. Test the Temperature Sensor

    Disconnect power to the AquaRite control box before testing.
  5. Reset the System

Parts You May Need

Temperature sensor
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Temperature sensor
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Temperature sensor
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Temperature sensor
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When to Call a Professional

If you've verified water temperature is above 50°F, flow is adequate, and the temperature sensor tests fine but the error persists, the control board may be faulty. Call a Hayward-certified technician for further diagnostics.

Frequently Asked Questions

Can I bypass error code 17 on my Hayward AquaRite?
No, bypassing the low-temperature safety feature can damage the cell. The system is designed to prevent operation below 50°F to protect the cell from freezing. Wait for warmer water or use a heater.
Why does my pool have error 17 even when water feels warm?
The sensor may be faulty or the water flow may be too low, causing a false reading. Check the temperature with a separate thermometer and inspect the flow. Also, the sensor might be reading the temperature inside the cell, which can differ if there's no flow.
How do I replace the temperature sensor on my Hayward AquaRite?
The temperature sensor is usually located inside the cell or in the flow switch assembly. Disconnect power, remove the sensor, and replace it with a compatible Hayward part. Refer to your model's manual for exact location and part number.
Will error 17 go away on its own?
Yes, if the water temperature is below 50°F, the error will clear automatically when the water warms up above 50°F. No action needed.
Can low salt cause error 17?
No, low salt typically triggers a different error code (e.g., 121 for low salt). Error 17 is specifically for low temperature. However, low salt can affect performance, so check salt levels if you have other issues.