December 22, 2023

Understanding Navien Water Heater Error Code E110

Navien water heaters are known for their efficiency & reliability. However, they can encounter issues. Learn about error code E110.

Navien tankless water heaters have set a high standard for efficiency and reliability in the market. However, encountering error codes is not uncommon in these sophisticated appliances. The Navien error code E110 is particularly significant as it often indicates a system overheating issue. This error can arise due to a variety of reasons, ranging from internal component malfunctions to external system blockages.

Causes of Error Code E110 in Navien Water Heaters

Malfunctioning Heat Exchanger

One of the primary causes of the E110 error in Navien units is a malfunctioning heat exchanger. Over time, the heat exchanger may accumulate mineral deposits or experience wear and tear, impacting its ability to function efficiently.

Blocked Vents and Flues

Proper ventilation is crucial for the safe and efficient operation of any tankless water heater. Blocked vents or flues can lead to inadequate expulsion of exhaust gases, causing the system to overheat and triggering the E110 error.

System Malfunctions

Other system malfunctions, such as issues with the thermostat, gas supply, or internal wiring, can also lead to this error code. These problems require professional diagnosis and repair.

Professional Navien Repair Services

Diagnosing Error Code E110

At HVAC-Group, we specialize in Navien water heater service and repair. Our technicians are well-equipped to diagnose and address the specific cause of the E110 error. Using advanced tools and techniques, we ensure a thorough inspection and accurate problem identification.

Expert Navien Service Solutions

Once the cause is identified, our skilled team provides effective Navien repair solutions. Whether it involves cleaning the heat exchanger, unblocking ventilation systems, or repairing internal components, we focus on restoring your Navien water heater to its optimal state.

Why Choose HVAC-Group for Navien Error Code E110 Repair?

Expertise in Navien Errors and Repairs

Our team’s expertise in handling various Navien water heater errors, especially the E110 code, makes us a reliable choice for homeowners like you in Mississauga and the surrounding areas.

Comprehensive Service Coverage

We offer a comprehensive range of services, from diagnosing the error to complete repair and maintenance, ensuring your Navien tankless water heater operates smoothly and efficiently.

Customer-Centric Approach

Our commitment to quality service and customer satisfaction drives us to provide efficient, effective, and convenient repair solutions for all Navien-related issues.

Contact Us for Navien Error Code E110 Repair

For immediate assistance with Navien error code E110 repair, please call us at 416-807-2752, or fill out the service request form on our website. Our team is ready to provide prompt and professional service to ensure your Navien tankless water heater is running safely and efficiently!


Interested in learning more about our Navien Tankless Water Heater installation, repair, and maintenance services in Mississauga & GTA? Read about it in more detail here


Phone: (416) 807 - 2752
Address: 1767 Branchwood Park,
Mississauga, ON L4W 2E5