Introduction
Navien is a popular brand for tankless water heaters. One of the most common problems that users face is the E110 error code. This error code can be quite frustrating, as it can prevent your water heater from functioning properly. This article will help you understand what the Navien E110 error code means and how to troubleshoot it.
The Navien E110 error code usually appears when there is a problem with the exhaust temperature sensor. This sensor is responsible for monitoring the temperature of the exhaust gases. If the sensor is malfunctioning, the Navien unit will shut down and display the error code.
Causes of the Navien E110 Error Code
- Dirty or clogged exhaust vent
- Faulty exhaust temperature sensor
- Blocked or damaged air intake filter
- Improper installation
- Low gas pressure
- Power outage
Troubleshooting the Navien E110 Error Code
Before you call a technician, there are several steps you can take to troubleshoot the Navien E110 error code:
- Check the exhaust vent for any blockages or obstructions. If it is dirty or clogged, clean it with a brush or vacuum.
- Inspect the air intake filter for any damage or blockages. Clean or replace it if needed.
- Check the gas pressure. If it is too low, contact your gas supplier.
- Reset the unit by turning it off and on. This may clear the error code.
- If none of these steps work, contact a qualified technician to diagnose and repair the problem.
Conclusion
The Navien E110 error code can be frustrating, but it is usually fixable. By understanding the causes of the error code and performing some basic troubleshooting, you may be able to resolve the issue on your own. If not, contact a qualified technician to diagnose and repair the problem. Regular maintenance and inspections can also help prevent this error code from occurring in the first place.
Dirty or restricted air intake filter is the main culprit that causes your Navien Tankless Water Heater to throw the error code e110. Your water heater will not function unless you clean the air intake filter.
It means you can only clear the fault code e110 from the display when you remove the blockage from that filter. Sometimes, a clogged exhaust pipe can also cause the unit to pop up the error message E110.
In this article, I will walk you through the step-by-step cleaning procedure to clean both the exhaust pipe and the air intake filter. Also, I will describe how to reset the Navien tankless Water Heater. So, keep reading.
Table of Contents
- What Does E110 Mean On Navien Tankless Water Heater?
- 01. Exhaust Pipe Gets Clogged
- 02. Dirty Air Intake Filter
- How To Reset Error Code E110 On Navien Tankless Water Heater?
- FAQs
- End-Note
What Does E110 Mean On Navien Tankless Water Heater?
Error code E110 on Navien Tankless Water Heater means the air pressure is abnormal. The air pressure generally goes unusual when either the exhaust pipe or the intake air filter gets clogged by dirt, debris, and lint.
If you want to clear the error message e110 from the controller, you must keep both the exhaust pipe and the intake air filter obstruction-free. Below, I will show you how to inspect these two components for a clog and get rid of the blockage from there.
01. Exhaust Pipe Gets Clogged
Unburned gas fumes typically go out of the unit through the exhaust pipe or venting system. You should keep the venting or exhaust pipe clean whenever it gets clogged for proper water heater operation.
How To Fix:
You can clean the exhausting pipe using a vacuum cleaner with an extension. Just bring the vacuum close to the vent system and suck away dirt or debris from the vent pipe as much as you can.
Then, use a duct cleaner to reach those areas of the exhaust pipe where the vacuum cleaner fails. Alternatively, you can take apart each section of the exhaust pipe to clean the venting evenly.
02. Dirty Air Intake Filter
Your Navien Tankless Water Heater will cease to operate if the air intake filter gets restricted by dirt and lint. And the unit will throw the error code e110 on the front display to let you know it’s time to clean the air intake filter.
How To Fix:
Follow the below cleaning procedure to release blockage out of the air intake filter:
- Press the Power button to turn the unit off.
- Disconnect the water heater from the electric power supply.
- Remove the front panel.
- Use a flat head screwdriver to unscrew the nut that holds the air intake filter into its place.
- Remove the filter assembly from the water heater.
- Pull the air filter out of the plastic assembly and remove the lint and dirt from the filter using a toothbrush. Then, rinse it with clean water.
- Allow the filter to dry completely.
- Reinsert the filter into the plastic assembly.
- Reinstall the entire air intake filter assembly and secure it with the screw.
- Replace the front cover and restore the power supply to the unit.
- Press the Power button again to turn the unit on.
Go along with the following steps to reset the error code e110:
- Inspect the exhaust pipe and ensure there is no blockage.
- Check the air intake filter and clean it by removing the dirt and debris.
- Finally, turn the unit on and press the Back button to reset your Navien tankless water heater. It will reset the unit successfully by erasing the error code e110 from the front display.
FAQs
How do you clean a Navien condensate trap?
First off, locate the condensate trap, which you can find at the bottom of your Navien water heater. Then, pull out the metal wire click under the bottom of the cabinet and remove the cup from the bottom of the trap. Now, clean the condensate trap.
How often do you need to flush a Navien tankless water heater?
It depends on how hard the water is. The manual suggests flushing the tankless unit once a year. However, you should flush your Navien tankless unit every six month if you live in a hard water area.
Can I use CLR to clean my tankless water heater?
Yes, you can use CLR (small amount) with diluted vinegar to flush your tankless water heater.
End-Note
Navien Tankless Water Heater will not function properly if the air intake filter gets dirty and it will alert you by popping up the error code e110.
In short, the error code e110 indicates the air pressure is abnormal due to a clogged air intake filter. So, cleaning the air intake filter is a must to fix this issue. And fortunately, I already describe the procedure of cleaning the filter.
So, follow the guideline, clean the air intake filter, and erase the error code e110 from the front panel display. Good Luck!
Read Also:
- Navien Tankless Water Heater Code E003
Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. He obtained his Bachelor of Science degree from the University Of Texas at El Paso. Years of experience in the HVAC field have taught him many lessons, not the least of which is that the value of quality and knowledge far exceeds any promised initial savings. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems.
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Last Updated on July 22, 2023
Are you getting error code e110 for Navien Water Heater? If yes then this error code means that the exhaust of Navien Water Heater has a blockage. In this post we are going to provide you with possible troubleshoots to fix the Navien Water Heater error code e110?.
Possible Reasons For The Navien Water Heater error code e110
- There is any blockage in the intake, exhaust, or condensate pipe.
- Your intake air filter condition is bad, or it may need to be cleaned.
How To Fix Navien Water Heater error code e110?
Fix 1: Check For Any Possible Blockage
Any kind of blockage in the intake, exhaust, or condensate can lead you to this issue. So please carefully check your intake, exhaust, and condensate pipe for any kind of obstructions such as ice, snow, or something else.
If you find any kind of obstructions which may be causing the blockage then please clear it out, and check if it fixes the issue.
Fix 2: Check intake air filter
The intake air filter can also be the reason for the issue so check your water heater intake air filter condition. Also, check if the intake air filter needs to be clean.
Fix 3: Contact Navien
If you have checked both of the troubleshoots but the error code is still pursuing then please contact Navien as your water heater may need to replace its air pressure sensor, or there is something else that needed to be done to fix the issue.
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