How to Reset Lochinvar Knight Boiler: Step-by-Step Guide

To reset a Lochinvar Knight Boiler, locate the service notification settings on the control panel, select the reset option, and confirm the reset. Additionally, you can consult the boiler’s manual for specific instructions on resetting or disabling the maintenance reminder.

Remember to follow safety precautions and shut off the gas supply before making any adjustments to the boiler.

How to Reset Lochinvar Knight Boiler

Understanding The Lochinvar Knight Boiler Reset

In order to ensure optimal performance and efficiency, it is crucial to have a thorough understanding of how to reset your Lochinvar Knight Boiler. Regularly resetting your boiler is an essential maintenance task that should not be overlooked.

What Is A Lochinvar Knight Boiler?

A Lochinvar Knight Boiler is a high-efficiency condensing boiler that provides exceptional comfort and reliability. It is designed to deliver efficient heating while reducing energy costs.

These boilers utilize advanced technology and innovative features to optimize performance, such as a smart control system and a modulating burner.

Importance Of Regular Resetting

Regularly resetting your Lochinvar Knight Boiler is vital to ensure its proper functioning and to prevent potential issues. Here’s why:

  1. Relieves Lockout: A reset is necessary when the boiler goes into lockout mode due to various reasons, like ignition failure or temperature limit exceeded. By resetting the boiler, you can clear any lockout and restore normal operation.
  2. Restores Settings: Resetting the boiler allows you to restore the default settings or any desired custom settings, ensuring that the boiler operates as per your specific preferences and requirements.
  3. Optimizes Efficiency: Regular resetting of the boiler helps maintain its efficiency by allowing it to run smoothly and efficiently. It also helps prevent any system malfunctions that may arise due to prolonged use without resetting.
  4. Identifies Issues: When performing a reset, you have the opportunity to identify any underlying issues with the boiler. For example, if the boiler repeatedly goes into lockout mode, it may indicate a more significant problem that requires professional attention.

By regularly resetting your Lochinvar Knight Boiler, you can ensure its longevity, efficiency, and smooth operation, providing comfortable heating for your space.

How To Reset A Lochinvar Knight Boiler

The process of resetting a Lochinvar Knight Boiler is relatively straightforward. However, it is essential to follow the manufacturer’s guidelines as outlined in the boiler’s user manual. Here are the general steps to reset a Lochinvar Knight Boiler:

  1. Locate the control panel of the boiler.
  2. Press and hold the reset button for a few seconds.
  3. Wait for the boiler to go through its ignition sequence.
  4. Once the boiler is back in normal operation mode, ensure that all settings and parameters are as desired.
  5. If you encounter any issues during or after the reset process, or if the boiler continues to go into lockout mode frequently, it is recommended to contact a qualified technician for professional assistance.

Remember, regular resetting is crucial for maintaining the optimal performance of your Lochinvar Knight Boiler. Make it a part of your routine maintenance to ensure efficient operation and avoid potential problems.

Step-by-step Guide To Resetting The Lochinvar Knight Boiler

Step-by-Step Guide to Resetting the Lochinvar Knight Boiler

Locating The Reset Button

Locate the reset button on your Lochinvar Knight Boiler to prepare for the reset process.

Step 1: Turning Off The Power To The Boiler

Before resetting, switch off the power to the boiler to ensure safety during the reset.

Step 2: Waiting For Boiler To Cool

Allow the boiler to cool down before proceeding with the reset to prevent any accidents.

Step 3: Identifying The Service Reminder Reset Procedure

Familiarize yourself with the service reminder reset procedure for the Lochinvar Knight Boiler.

Step 4: Resetting The Service Reminder

Follow the specific steps to reset the service reminder on your Lochinvar Knight Boiler.

Step 5: Turning On The Boiler

Finally, turn on the boiler after the reset process to resume its normal functioning.

Common Issues And Troubleshooting

To reset a Lochinvar Knight Boiler, follow these steps: Locate the manual reset high limit and adjust it in installer programming for a hands-on reset. Check the service manual for instructions on disabling or changing maintenance reminder timing. Remember to inspect the boiler interior before resetting.

Boiler Stuck In Standby Mode

The Lochinvar Knight Boiler may sometimes get stuck in standby mode, causing inconvenience. This issue may arise due to various reasons such as sensor malfunctions, power supply interruptions, or internal components errors.

Troubleshooting Service Due Warning

The “Service Due” warning on the Lochinvar Knight Boiler might indicate that routine maintenance is required. However, if the warning persists after the maintenance, it could signal a potential issue with the system or the need for a reset.

Restarting The Lochinvar Boiler

To restart the Lochinvar Knight Boiler, follow these steps:

  1. Switch off the boiler and wait for a few minutes.
  2. Check for any visible error codes or warnings on the display panel.
  3. Inspect the power supply to ensure there are no interruptions or faults.
  4. If the issue persists, consult the boiler’s manual for specific troubleshooting steps.
  5. If unresolved, consider seeking professional assistance to diagnose and rectify the problem.

In situations where the boiler experiences recurring issues or remains unresponsive, it is recommended to engage a qualified technician for a thorough inspection and resolution. Remember, proactive maintenance can prevent potential disruptions and extend the lifespan of your Lochinvar Knight Boiler.

Advanced Maintenance And Reset

In order to ensure the proper functioning and longevity of your Lochinvar Knight Boiler, it is important to perform advanced maintenance and resets at regular intervals. This will not only help in preventing potential issues but also optimize the performance of your boiler.

Manual Reset High Limit

The Manual Reset High Limit is an important safety feature of the Lochinvar Knight Boiler. In the event of overheating, this limit will trip and shut down the boiler as a precautionary measure. To reset the Manual Reset High Limit, follow these steps:

  1. Locate the control panel of your Lochinvar Knight Boiler.
  2. Find the Manual Reset High Limit button or switch. It is usually labeled and easily identifiable.
  3. Press the button or flip the switch to reset the Manual Reset High Limit.
  4. Wait for a few minutes to allow the boiler to cool down.
  5. Once cooled, power on the boiler to resume normal operation.

It is important to note that the Manual Reset High Limit should only be reset after identifying and addressing the cause of the overheating.

Adjusting Maintenance Reminder Settings

The Lochinvar Knight Boiler comes with a built-in maintenance reminder system to let you know when it’s time to service the boiler. However, you can adjust the settings of this reminder to better suit your needs. Follow these steps to adjust the Maintenance Reminder Settings:

  1. Access the control panel of your Lochinvar Knight Boiler.
  2. Enter the installer programming mode by following the instructions provided in the boiler’s service manual.
  3. Locate the Maintenance Reminder Settings option in the programming menu.
  4. Use the navigation buttons to adjust the frequency and duration of the maintenance reminders according to your preferences.
  5. Save the settings and exit the installer programming mode.

By adjusting the Maintenance Reminder Settings, you can ensure that you never miss an opportunity to perform necessary maintenance on your Lochinvar Knight Boiler, keeping it running smoothly and efficiently.

Additional Resources For Lochinvar Knight Boiler

If you are looking to access the service manual for the Lochinvar Knight Boiler, there are several resources available that provide detailed instructions regarding its functionality and maintenance. You can find comprehensive information on how to reset, disable, or change the timing of the maintenance reminder in the service manual. This resource will guide you through any necessary adjustments to the boiler’s settings, ensuring efficient operation and maintenance.

The Lochinvar Knight Boiler is equipped with an outdoor reset feature that allows the boiler to adjust its temperature based on outdoor conditions. Understanding this feature is crucial in optimizing the efficiency of the boiler and ensuring optimal performance. Referencing the service manual or seeking expert guidance is recommended to fully comprehend and utilize this advanced functionality.

Frequently Asked Questions

How Can I Reset My Boiler?

To reset your boiler, locate the reset button and press it. Wait a few minutes for the boiler to restart.

What Is The Access Code For Lochinvar Knight Boiler?

The access code for the Lochinvar Knight boiler is 5309.

How do I reset my boiler lockout?

To reset your boiler lockout, locate the reset button and hold it for 5 seconds. If the boiler doesn’t start, check for any issues with the gas supply or ignition. Finally, consult the boiler’s manual for specific troubleshooting steps. Regular maintenance can prevent future lockouts.

How do I reset my Lochinvar maintenance reminder?

To reset your Lochinvar maintenance reminder, press and hold the reset button for 5 seconds. Release the button once the display resets.

How Can I Reset My Boiler Lockout?

To reset a boiler lockout, locate the reset button on the boiler control panel and press it to restart the system safely.


To successfully reset your Lochinvar Knight Boiler, follow the step-by-step instructions provided in this blog post. Remember, it’s crucial to carefully enter the correct codes and settings to avoid any further issues. By resetting your boiler, you can resolve common problems like service notifications and maintenance reminders.

Refer to the manual for additional assistance, and always prioritize safety by shutting off the gas supply if necessary. With these guidelines, you can effectively reset your Lochinvar Knight Boiler and ensure it functions optimally.

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