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The "SF" error code on a Hayward heater indicates a temperature sensor failure, which can be caused by faulty wiring, a corroded sensor, or a damaged control board.Understanding the SF Code
The "SF" code stands for Sensor Failure. This error typically occurs when the heater's temperature sensor is not functioning correctly, which can prevent the heater from operating efficiently or safely. Common causes include:- Faulty Wiring Connections: Loose or corroded connections can disrupt the sensor's functionality.
- Corroded Temperature Sensors: Over time, sensors can accumulate dirt or corrosion, affecting their performance.
- Damaged Control Boards: In some cases, the issue may lie with the control board itself, which may need replacement.
Troubleshooting Steps
- Check Wiring Connections: Inspect the wiring connected to the temperature sensor. Ensure that all connections are secure and free from corrosion. Clean any corroded connections if necessary.
- Inspect the Temperature Sensor: Remove the temperature sensor and clean it gently with a soft brush or cloth. If cleaning does not resolve the issue, consider replacing the sensor.
- Reset the Heater: Sometimes, resetting the heater can clear temporary errors. To reset your Hayward heater:
- Put the heater in standby mode by pressing the standby button on the control panel.
- Wait a few minutes, then switch it back to its operating mode.
- Check for Blockages: Inspect the flue for any blockages that could affect the sensor's readings. Clear any debris or obstructions found.
- Examine the Exhaust Fan: Ensure that the exhaust fan is functioning correctly. If it is not working properly, it may need to be repaired or replaced.
Conclusion
hayward.comHow do you troubleshoot an 'SF' or 'HS' code? - hayward.comHow do you troubleshoot an 'SF' or 'HS' code? The 'SF' code indicates a sensor failure. Check the thermistor resistance between specified wires. If the readings differ by more than…https://hayward.com › knowledge-base › how-do-you-troubleshoot-an-sf-or-hs-codethamestechsolution.comhow to fix hayward pool heater sf code? - thamestechsolution.comAre you experiencing an SF code on your Hayward pool heater? Wondering what it means and how to resolve it? Look no further. In this article, we will guide you through the troubles…https://thamestechsolution.com › hayward-pool-heater-sf-codefixflux.comHayward Heater SF and BO Codes - Fix FluxIf you own a Hayward pool heater, you may have encountered the SF and BO error codes at some point. These codes can be frustrating, but they are essential indicators of potential i…https://fixflux.com › hayward-heater-sf-and-bo-codes
How do you troubleshoot an 'SF' or 'HS' code? - hayward.com
Learn the steps to identify and resolve issues associated with ‘SF’ or ‘HS’ codes effectively.
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