Owning a Hayward pool heater provides a great way to enjoy comfortable swimming temperatures year-round. However, encountering error codes can be frustrating. In this article, we will explore the common error codes encountered in Hayward pool heaters and provide step-by-step troubleshooting instructions to help you resolve these issues. By following these guidelines, you can quickly get your pool heater back up and running efficiently.

Hayward Pool Heater Parts Diagram

Hayward Pool Heater BO Code

What Does BO Code Mean?

The Hayward Pool Heater BO code indicates a flame-sensing fault. It means that the heater is unable to detect the flame properly. This error code is commonly caused by a dirty or corroded flame sensor. Cleaning the flame sensor and checking the wiring connections are the initial troubleshooting steps to resolve this issue.

BO Code Quick Troubleshooting Steps:

  1. Indicates a flame-sensing fault.

  2. Check and clean the flame sensor using a soft brush or cloth.

  3. Inspect wiring connections for damage or corrosion.

  4. Consider replacing the flame sensor if the issue persists.

In-Depth Instructions

Flame Sensing Fault: The BO code typically indicates a flame-sensing fault in your Hayward pool heater. This error occurs when the heater is unable to detect the flame properly. The most common cause of this issue is a dirty or corroded flame sensor. The flame sensor is a small metal rod that senses the presence of the burner flame. If it is dirty or covered in corrosion, it may not detect the flame correctly, leading to the BO code.

Troubleshooting Steps: To troubleshoot this issue, start by inspecting the flame sensor. Locate the flame sensor, usually positioned near the burners, and carefully clean it using a soft brush or cloth. Make sure it is free of any dirt, debris, or corrosion. After cleaning, try restarting the heater to see if the BO code is resolved.

Next, check the wiring connections to the flame sensor. Ensure they are secure and free of any damage or corrosion. Loose or damaged connections can also cause the BO code to appear.

If cleaning the flame sensor and checking the wiring connections do not solve the problem, it may be necessary to replace the flame sensor. Consult the heater’s manual or contact Hayward customer support for guidance on how to replace the flame sensor.

Hayward Pool Heater IF Code

What Does IF Code Mean?

The Hayward Pool Heater IF code indicates an ignition failure. This means that the heater was unable to ignite the gas properly, preventing it from operating as intended.

IF Code Quick Troubleshooting Steps

  1. Refers to an ignition failure.

  2. Check gas supply and ensure valves are open.

  3. Verify the pilot light is lit and follow relighting instructions if needed.

  4. Inspect venting system and gas lines for obstructions.

  5. Ensure gas pressure is within specified range.

Detailed Instructions

Ignition Failure: The IF code typically indicates an ignition failure in your Hayward pool heater. This error occurs when the heater fails to ignite the gas properly. To resolve this issue, several steps can be taken.

Gas Supply and Pilot Light: First, check the gas supply. Ensure that the gas supply to the heater is turned on and that the gas valves are fully open. If the gas supply is turned off, turn it on and check if the heater ignites.

Next, verify the pilot light. If your heater has a pilot light, check if it is lit. If the pilot light is not lit, follow the manufacturer’s instructions to relight it. This usually involves turning the gas control knob to the pilot position, pressing it down to allow gas flow, and using a separate ignition source to light the pilot light.

Obstructions and Gas Pressure: If the pilot light is lit but the heater still displays the IF code, there might be obstructions in the venting system or blockages in the gas lines. Inspect the venting system and gas lines for any debris or obstructions, and clear them if necessary.

Additionally, check the gas pressure to ensure it is within the manufacturer’s specified range. Low gas pressure can also cause ignition failures.

Professional Assistance: If you have followed these steps and the IF code persists, it is recommended to contact a professional technician who specializes in pool heater repairs. They have the expertise to diagnose and resolve complex issues and ensure your heater is functioning properly.

Hayward Pool Heater LO Code

What Does The LO Code Mean?

The Hayward Pool Heater LO code means there is a water pressure switch error. It indicates that the heater is not detecting sufficient water flow or pressure, which can impact its operation.

LO Code Quick Trouble Shooting Steps

  1. Indicates a water pressure switch error.

  2. Check water flow rate meets requirements.

  3. Inspect filter system for clogs or restrictions.

  4. Clean or replace the water pressure switch as necessary.

  5. Verify secure and undamaged wiring connections.

In Depth

Water Pressure Switch Error: The LO code typically indicates a water pressure switch error in your Hayward pool heater. This error occurs when the heater is not detecting sufficient water flow or pressure.

Troubleshooting Steps: To troubleshoot the LO code, begin by checking the water flow rate. Ensure that the water flow meets the heater’s requirements. If the water flow is too low, it can trigger the LO code.

Inspect the filter system for any clogs or restrictions that may be affecting water flow. Clean or replace the filter if necessary.

Check the water pressure switch, which is responsible for detecting water flow and pressure. Ensure that the switch is free of any debris or damage, and clean or replace it if needed.

Verify the wiring connections to the water pressure switch. Loose or damaged connections can also trigger the LO code. Make sure the connections are secure and undamaged.

Professional Assistance: If the LO code persists after checking the water flow, filter, switch, and wiring connections, it is advisable to contact a qualified technician. They can further diagnose the issue and provide appropriate solutions to resolve the water pressure switch error.

Hayward Pool Heater Not Turning On

Not Turning On Quick Troubleshooting Steps:

  1. Check power supply, circuit breaker, and fuses.

  2. Ensure thermostat is set correctly and calling for heat.

  3. Verify gas supply is turned on and valves are open.

  4. Check for error codes or indicator lights on the control panel.

  5. Inspect wiring connections for security and damage.

  6. Contact a professional pool heater technician if issues persist.

In Detail

Power Supply and Thermostat: If your Hayward pool heater is not turning on, there could be several possible causes. Begin by checking the power supply. Ensure that the power supply to the heater is connected properly and functioning. Check if the circuit breaker or fuse for the heater is tripped or blown. If it is, reset the breaker or replace the fuse.

Verify the thermostat settings. Make sure that the thermostat is set to the desired temperature and is calling for heat. Adjust the thermostat settings if necessary.

Gas Supply and Pilot Light: Check the gas supply to the heater. Ensure that the gas supply is turned on and the gas valves are fully open. If the gas supply is turned off, turn it on and check if the heater ignites.

Inspect the pilot light. If your heater has a pilot light, check if it is lit. If the pilot light is not lit, follow the manufacturer’s instructions to relight it. This usually involves turning the gas control knob to the pilot position, pressing it down to allow gas flow, and using a separate ignition source to light the pilot light.

Control Panel and Wiring Connections: Look for any error codes or indicator lights on the control panel. Consult your heater’s manual to understand the meaning of the error codes and follow the recommended troubleshooting steps provided by the manufacturer.

Inspect the wiring connections to ensure they are secure and undamaged. Loose or damaged connections can prevent the heater from turning on. If you find any issues, consult the manual or contact Hayward customer support for guidance on how to address the wiring problems.

Professional Assistance: If none of these steps resolve the issue and your Hayward pool heater still does not turn on, it is recommended to contact a professional technician who specializes in pool heater repairs. They have the expertise to diagnose and resolve complex issues and ensure your heater is functioning properly.

Error Code bD

Hayward water heaters may display the “bD” error code, which is specific to the brand. However, this code might not be universally documented. To address it:

  1. Consult the User Manual: Start by referring to your water heater’s user manual. This guide typically contains a section dedicated to error codes and troubleshooting for your specific model.

  2. Power Cycle: Turn off the water heater, wait a few minutes, and then turn it back on. This simple step can clear temporary glitches and reset the control board.

  3. Inspect Venting Pipes: Check for obstructions in the air intake and exhaust venting pipes. Blocked pipes can disrupt combustion and trigger error codes.

  4. Gas Supply: Verify a steady gas supply, ensuring no leaks and the correct gas valve position.

  5. Pressure Switch Check: The “bD” code may relate to a pressure switch issue. Inspect it for cleanliness, proper operation, and any loose or damaged wires.

  6. Flame Sensor and Ignition System: Examine and clean the flame sensor if dirty, and ensure the ignition system functions correctly.

  7. Thermostat Settings: Confirm the thermostat is set to your desired temperature and not set too high or low.

  8. Professional Help: If issues persist, seek assistance from a qualified technician or Hayward customer support. Complex problems should not be tackled without expertise to prevent safety risks.

Remember to consult your specific water heater’s user manual for precise error code details, as they can vary between models. If your unit is under warranty, contact Hayward’s customer support to avoid voiding the warranty.

The CE error code on Hayward water heaters signifies a communication problem between the control board and the user interface. To address this issue:

Troubleshooting:

  1. Power Cycle: Turn off the heater, wait a few minutes, and restart it. This can resolve temporary glitches.

  2. Check Wiring: Inspect wiring connections between the control board and user interface for damage or disconnections. Repair or reconnect as necessary.

  3. User Interface Assessment: Look for physical damage (e.g., cracked screen or unresponsive buttons) on the user interface. Replace if damaged.

  4. Professional Help: If issues persist, consult a qualified technician for advanced diagnostics and repairs.

Solutions:

  1. Wiring Repair: Fix damaged or disconnected wires and ensure secure connections.

  2. User Interface Replacement: Replace a faulty user interface with a compatible component. Contact Hayward or refer to your user manual for guidance.

  3. Control Board Replacement: Rarely, a defective control board may require replacement. Leave this complex task to a qualified technician.

Error Code EE

Here are some ways to address the EE error code.

  1. Consult the User Manual: Start by referring to your water heater’s user manual. This guide typically contains a section dedicated to error codes and troubleshooting for your specific model.

  2. Power Cycle: Turn off the water heater, wait a few minutes, and then turn it back on. This simple step can clear temporary glitches and reset the control board.

  3. Inspect Venting Pipes: Check for obstructions in the air intake and exhaust venting pipes. Blocked pipes can disrupt combustion and trigger error codes.

  4. Gas Supply: Verify a steady gas supply, ensuring no leaks and the correct gas valve position.

  5. Pressure Switch Check: The “EE” code may relate to a pressure switch issue. Inspect it for cleanliness, proper operation, and any loose or damaged wires.

  6. Flame Sensor and Ignition System: Examine and clean the flame sensor if dirty, and ensure the ignition system functions correctly.

  7. Thermostat Settings: Confirm the thermostat is set to your desired temperature and not set too high or low.

  8. Professional Help: If issues persist, seek assistance from a qualified technician or Hayward customer support. Complex problems should not be tackled without expertise to prevent safety risks.

Error Code IO

When an ignition device is opened it shows this error code. Once the blower is running, it can stop and start locking up the motor. Once a fault is fixed it automatically restarts within 2 minutes.

Error Code HS

If water temperature sensors are incorrect, the error message will be shown.

Error Code AC

The error occurred if your blower vacuum switch is open. When the blower has been energized and the vacuum switch has been closed, the unit cannot be turned off. If you haven’t opened the Switch, the error will be resolved, and your machine will automatically restart.

Error Code HF

This Hayward pool heater error code appears after the flames have not burned and the gas valve does not energize.

Error Code SB

This occurs after a hotplate keypad fails.

Error Code AO

It is basically the opposite of AC codes. The blower vacuum switch opens when it should close. When the blower is triggered suddenly, the control will close down to try to turn off if the vacuum switch is opened. Upon triggering the blower the device switches off in lockout mode and the blower is activated unless the switch closes. Immediately after repair, the system starts to reset.

Error Code SF

The error codes are displayed in the temperature sensors.

How do I reset the error code on my Hayward pool heater?

The heater resets when errors are fixed and returns the operation if the following tables show the details in detail. This heater is reset manually via keys and switches to standby mode and then back into original operation mode (POOL or SPA).

What is the if code on the Hayward pool heater?

The IF code shows the heater display after the ignition has failed. The heater lights up once before showing the IF and shutting down the heater once more. It prevents heat from getting damaged by gas buildup or other ignition problems.

How do I fix error code CE on a Hayward pool heater?

CED indicates a communication error between the ignition control board and display board. First, you can disconnect the electric power from the heater. Secondly, check the wires for a safe connection to the wires.

Why is my Hayward heater not firing?

If the heater hasn’t been fueled for more than three weeks, there could be blockages in either of the burners that prevent gas from exiting the fire source and entering the spark. The problem is related primarily to two factors: (1) a bad ignitor. (2) Poor gas valves.

In Conclusion

Owning a Hayward pool heater provides the luxury of enjoying comfortable swimming temperatures throughout the year. However, encountering error codes can be a frustrating experience. In this comprehensive guide, we have explored the most common error codes found in Hayward pool heaters and provided detailed troubleshooting instructions to help you resolve these issues.

By following the troubleshooting instructions outlined in this guide, you can quickly and effectively address the error codes in your Hayward pool heater, ensuring its efficient operation and uninterrupted enjoyment of your pool. If you encounter persistent issues or require additional assistance, do not hesitate to send us an email so we know how we can help.