Instructions for Fixing Errors: Navien Error Code E003

Introduction

Navien is a well-known brand in the world of tankless water heaters. However, like any other appliance, Navien tankless water heaters can also experience errors and malfunctions. One of the most common errors that Navien users encounter is the E003 error code. This error code indicates a problem with the ignition, and it can prevent the water heater from functioning properly. In this article, we will provide you with detailed instructions on how to fix the Navien error code E003.

What Causes the Navien Error Code E003?

Before we dive into the steps to fix the Navien error code E003, it’s important to understand what causes this error code. The E003 error code is triggered when the ignition fails to light up. This can happen due to a variety of reasons, including:

1. Gas Supply Issues

If there is a problem with the gas supply, the Navien water heater may not be able to ignite. This can happen if the gas valve is closed, the gas pressure is too low, or there is a blockage in the gas line.

2. Ignition Component Failure

The ignition component of the Navien water heater can fail due to wear and tear or other issues. If the ignition component is not functioning properly, the water heater will not be able to ignite.

3. Electrical Issues

The Navien water heater relies on electricity to function properly. If there is an issue with the electrical supply, the water heater may not be able to ignite. This can happen if there is a problem with the circuit breaker, the wiring, or the control board.

Steps to Fix the Navien Error Code E003

Now that you know what causes the Navien error code E003, let’s take a look at the steps to fix this error code.

Step 1: Check the Gas Supply

The first step to fixing the Navien error code E003 is to check the gas supply. Make sure that the gas valve is open and that there are no blockages in the gas line. You should also check the gas pressure to ensure that it is within the recommended range.

Step 2: Check the Ignition Component

If the gas supply is not the issue, the next step is to check the ignition component. You should inspect the ignition electrode and the flame sensor to ensure that they are clean and free of debris. If there is any buildup on these components, you can clean them using a soft brush or a cloth.

Step 3: Check the Electrical Supply

If the gas supply and the ignition component are not the issue, the next step is to check the electrical supply. You should check the circuit breaker to ensure that it is not tripped. You should also inspect the wiring and the control board to ensure that there are no loose connections or damaged components.

Step 4: Reset the Water Heater

If none of the above steps work, you can try resetting the Navien water heater. To do this, turn off the water heater and unplug it from the electrical outlet. Wait for a few minutes and then plug it back in and turn it on. This will reset the water heater and may fix the E003 error code.

Conclusion

The Navien error code E003 can be frustrating, but it is usually easy to fix. By following the steps outlined in this article, you should be able to diagnose and fix the issue with your Navien water heater. If you are still experiencing issues after trying these steps, it may be time to call a professional for assistance.

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