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Conor Crawford • April 17, 2024
Understanding Common Navien Tankless Water Heater Error Codes and How Local Plumbing Can Help Residents in Tiburon, San Rafael, and Kentfield
Tankless water heaters are a modern convenience that save space and energy, providing homes with a continuous supply of hot water. Navien is a leading brand known for its efficiency and reliability. However, like any sophisticated appliance, Navien tankless water heaters can sometimes display error codes that indicate various issues. For residents of Tiburon, San Rafael, and Kentfield, understanding these error codes can be key to quick resolutions. Here at Local Plumbing, based in Sausalito and Petaluma, we are committed to helping you manage these concerns swiftly and effectively.
Common Navien Error Codes and Their Meanings:
E001: Water Boiling Error
- Cause: This error occurs when the water in the heat exchanger gets too hot, typically due to scale buildup or poor water flow.
- Fix: Flushing the heat exchanger can usually resolve this issue. It’s also wise to check for any clogs or kinks in the water flow system.
E002: Low Water Pressure
- Cause: Insufficient water flow through the heater, possibly due to a closed water valve or clogged filter.
- Fix: Ensure that all valves are fully open and clean the inlet water filter. If the problem persists, the water pressure sensor might need attention.
E003: Ignition Failure
- Cause: The heater fails to ignite, which could be due to a problem with the gas supply, ignition operation, or venting.
- Fix: Check the gas supply, igniter, and flame rod. Cleaning the ignition components or adjusting the gas pressure may resolve the issue.
E012: Flame Loss
- Cause: The unit starts up, but the flame is lost. This could be due to improper venting, gas pressure, or a faulty flame rod.
- Fix: Inspecting and cleaning the flame rod, checking vent pipes for obstructions, and verifying proper gas pressure are essential steps.
E010: Abnormal Exhaust Temperature
- Cause: Excessive exhaust temperatures generally suggest venting issues.
- Fix: Check the venting system for blockages, leaks, or improper installation. Ensuring correct vent pipe length and configuration is crucial.
E004: Water Temperature Sensor Fault
- Cause: A faulty or improperly positioned water temperature sensor.
- Fix: Replace or reposition the water temperature sensor.
E021: Cold Water Inlet Temperature Sensor Fault
- Cause: The sensor measuring the temperature of the incoming cold water is malfunctioning.
- Fix: This typically requires a sensor replacement.
E022: Hot Water Outlet Temperature Sensor Fault
- Cause: Similar to E021, but with the hot water outlet sensor.
- Fix: Replacing the hot water outlet temperature sensor should correct this error.
How Local Plumbing Can Assist:
For homeowners in Tiburon, San Rafael, and Kentfield, encountering an error code on your Navien tankless water heater can be a significant inconvenience. Local Plumbing is here to help! Our team of skilled technicians can swiftly diagnose and address issues indicated by these error codes. We specialize in:
- Regular maintenance: To prevent common issues that lead to error codes.
- Comprehensive repairs: Including sensor replacements, system flushes, and more.
- Expert advice: On whether to repair or replace an aging unit.
- Emergency Services: Understanding that water heater issues can arise at any time, we offer emergency services to ensure that you are never left in the cold.

At Local Plumbing, serving the communities of Sausalito, Petaluma, Tiburon, San Rafael, and Kentfield, we pride ourselves on providing top-notch service and expertise, especially when it comes to high-efficiency appliances like Navien tankless water heaters. Whether you're facing a simple sensor issue or need a more complex system overhaul, our team is ready to provide fast, reliable solutions.
For more information or to schedule a service, visit our website or call us directly. Trust Local Plumbing to keep your water heating system running smoothly!
At Local Plumbing, we take pride in offering top-quality plumbing services tailored to the unique needs of Mill Valley residents and businesses. Whether you’re dealing with an unexpected plumbing emergency or planning a system upgrade, our skilled team is here to provide reliable, efficient, and cost-effective solutions. Comprehensive Plumbing Services in Mill Valley We offer a full spectrum of plumbing services, ensuring your home or business systems run smoothly all year long: 1. Boilers and Radiant Heating Systems Keep your home warm and cozy with our expert installation, repair, and maintenance of boilers and radiant heating systems. We ensure maximum efficiency and comfort. 2. Water Heater Services From traditional to tankless water heaters, we specialize in installation, repair, and regular maintenance, ensuring you always have access to hot water. 3. Heat Pump Water Heaters Our eco-friendly heat pump water heater services are designed to save energy and reduce your utility bills, providing a sustainable hot water solution. 4. Sewer and Drain Services We provide professional sewer line inspections, repairs, and drain cleaning to prevent clogs and ensure smooth operation of your plumbing system. 5. Leak Detection and Repair Utilizing advanced technology, we locate and fix hidden leaks quickly, preventing water damage and saving you money on your water bill. 6. Water Filtration Systems Enhance the quality of your water with our customized water filtration systems, designed to deliver safe and clean water for your household or business. 7. Commercial Plumbing Our team has the expertise to handle complex commercial plumbing systems, ensuring minimal downtime and efficient solutions for your business needs. 8. Fire Sprinklers Protect your property with our fire sprinkler installation and maintenance services, providing peace of mind and safety for your family or employees. 9. Property Maintenance Regular plumbing maintenance keeps your systems functioning at peak performance and prevents costly repairs down the road. Why Mill Valley Chooses Local Plumbing Experienced Technicians: Our certified plumbers bring years of expertise to every job, ensuring exceptional results. Customer-Focused Service: Your satisfaction is our top priority, and we tailor our services to meet your specific needs. Prompt Response: Plumbing emergencies can’t wait—our team is ready to respond quickly and resolve issues efficiently. Fair Pricing: We offer transparent, competitive pricing with no hidden fees, so you know exactly what to expect. Sustainability Commitment: As part of the Mill Valley community, we prioritize eco-friendly plumbing solutions whenever possible. Get Started Today! If you’re in Mill Valley and need expert plumbing services, look no further than Local Plumbing. From routine maintenance to complex installations, we’ve got you covered. 📞 Call us today at 415-484-0454 or visit our website at www.localplumbingca.com to schedule your appointment or request a free quote.
As a leading plumbing service provider in Ross, California, Local Plumbing is dedicated to delivering top-notch solutions for both residential and commercial clients. Our comprehensive range of services ensures that all your plumbing needs are met with professionalism and expertise. Our Services Boilers and Radiant Heating: We specialize in the installation, maintenance, and repair of boilers and radiant heating systems, ensuring efficient and reliable heating solutions for your property. Water Heaters: Our team handles traditional and tankless water heater services, including installation, repair, and maintenance, to provide consistent hot water supply. Heat Pump Water Heaters: We offer energy-efficient heat pump water heater solutions that can significantly reduce your energy consumption and costs. Commercial Services: Our expertise extends to commercial plumbing needs, ensuring that businesses in Ross receive prompt and reliable plumbing solutions. Water Filtration: We provide water filtration system installations and maintenance to ensure clean and safe water for your home or business. Sewer Line and Drains: Our services include sewer line inspections, repairs, and drain cleaning to prevent and address blockages and backups. Fire Sprinklers: We install and maintain fire sprinkler systems to enhance the safety of your property. Leak Detection: Utilizing advanced technology, we accurately detect and repair leaks to prevent water damage and conserve water. Property Maintenance: Our property maintenance services ensure that all plumbing systems are functioning optimally, preventing potential issues before they arise. Why Choose Local Plumbing? Experienced Professionals: Our team comprises skilled and certified plumbers committed to delivering high-quality workmanship. Customer-Centric Approach: We prioritize customer satisfaction, offering transparent communication and tailored solutions to meet your specific needs. Prompt and Reliable Service: Understanding the urgency of plumbing issues, we provide timely responses and efficient services to resolve problems swiftly. Competitive Pricing: We offer fair and transparent pricing, ensuring value for your investment without compromising on quality. Contact Us For all your plumbing needs in Ross, California, trust Local Plumbing to deliver exceptional service. Contact us today at 415-484-0454 or visit our website at www.localplumbingca.com to schedule an appointment or request a quote.
When it comes to home heating in Sonoma and Marin counties, the NTI TRX boiler stands out as a top choice. With its cutting-edge technology, superior efficiency, and environmental benefits, it’s no surprise that homeowners in this region are turning to these modern systems. Local Plumbing is proud to specialize in the installation and repair of NTI TRX boilers, making us the go-to plumbing company in Sonoma and Marin. Why Sonoma and Marin Homeowners Choose NTI TRX Boilers NTI (New Yorker Thermal Innovations) is a trusted name in the heating industry, and their TRX series boilers are designed with the needs of California homeowners in mind. With the fluctuating temperatures and growing emphasis on energy efficiency in Sonoma and Marin, these boilers deliver unmatched performance. Key features of NTI TRX boilers include: High Efficiency : With an AFUE (Annual Fuel Utilization Efficiency) rating of up to 95%, these boilers help homeowners in Sonoma and Marin save on energy costs while staying comfortable. Modulating Technology: The TRX series adjusts heat output to meet your home’s specific needs, reducing energy waste and ensuring consistent warmth. Compact Design: Perfect for homes in Sonoma and Marin where space may be limited, these wall-mounted boilers are sleek and efficient. Smart Controls : Advanced connectivity allows you to manage your heating system remotely, making it ideal for tech-savvy homeowners. Built to Last: Crafted from premium materials, NTI TRX boilers offer durability and long-lasting performance—a must for homes in Northern California. The Local Plumbing Advantage for NTI TRX Boiler Installation and Repair 1. Unmatched Expertise in Sonoma and Marin At Local Plumbing, we have years of experience installing and repairing NTI TRX boilers for homeowners throughout Sonoma and Marin counties. Our team understands the unique heating challenges of this region, ensuring every system we install is perfectly suited to your home. 2. Tailored Solutions Every home is different, and we take the time to assess your specific needs. Whether you’re upgrading an outdated system or installing a boiler for a new build, we customize our services to deliver the best results. 3. Reliable Repairs and Maintenance Already have an NTI TRX boiler? Our expert technicians provide comprehensive repair and maintenance services to keep your system running smoothly. We’re committed to ensuring your boiler performs efficiently year-round. 4. Local and Trusted As a locally owned and operated company, we pride ourselves on serving our Sonoma and Marin communities with integrity and professionalism. When you choose Local Plumbing, you’re supporting a business that genuinely cares about your satisfaction. Benefits of Installing an NTI TRX Boiler in Sonoma and Marin Energy Savings for Northern California Homes The high-efficiency rating of NTI TRX boilers means lower energy bills for homeowners in Sonoma and Marin. Say goodbye to high utility costs and hello to sustainable savings. Environmentally Friendly Heating With California’s push for greener energy solutions, NTI TRX boilers are a perfect fit. They produce fewer emissions and use less energy, aligning with the eco-conscious values of many Sonoma and Marin residents. Consistent Comfort The advanced modulating technology ensures even heating throughout your home, keeping you cozy during the cooler months without temperature fluctuations. Quiet Operation For those who value peace and quiet, NTI TRX boilers operate almost silently, making them an excellent choice for your home. Enhanced Home Value Installing a high-quality boiler like the NTI TRX not only improves your heating system but also boosts your property’s value—a significant benefit for homeowners in the competitive Sonoma and Marin real estate markets. Why Local Plumbing is Sonoma and Marin’s Trusted NTI TRX Boiler Partner Expert Installation and Repair Local Plumbing specializes in NTI TRX boilers, ensuring every system we work on meets the highest standards of performance and reliability. Customer-Centric Approach Our priority is your satisfaction. From the initial consultation to the final installation or repair, we’re with you every step of the way, providing clear communication and expert guidance. Fast and Reliable Service We understand that heating issues can’t wait. That’s why we offer prompt and efficient service to homeowners throughout Sonoma and Marin counties. Competitive Pricing High-quality heating solutions shouldn’t break the bank. Local Plumbing offers transparent pricing and flexible options to fit your budget. Get Started with Local Plumbing Today If you’re ready to upgrade your heating system or need professional repairs, Local Plumbing is here to help. Our team of experts specializes in NTI TRX boilers, providing top-tier service to homeowners in Sonoma and Marin counties. Contact Local Plumbing today to schedule your consultation. Let us show you why so many Sonoma and Marin residents trust us for their boiler installation and repair needs. Don’t wait—experience the comfort, efficiency, and reliability of an NTI TRX boiler with Local Plumbing by your side!
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At Local Plumbing, we take pride in offering top-quality plumbing services tailored to the unique needs of Mill Valley residents and businesses. Whether you’re dealing with an unexpected plumbing emergency or planning a system upgrade, our skilled team is here to provide reliable, efficient, and cost-effective solutions. Comprehensive Plumbing Services in Mill Valley We offer a full spectrum of plumbing services, ensuring your home or business systems run smoothly all year long: 1. Boilers and Radiant Heating Systems Keep your home warm and cozy with our expert installation, repair, and maintenance of boilers and radiant heating systems. We ensure maximum efficiency and comfort. 2. Water Heater Services From traditional to tankless water heaters, we specialize in installation, repair, and regular maintenance, ensuring you always have access to hot water. 3. Heat Pump Water Heaters Our eco-friendly heat pump water heater services are designed to save energy and reduce your utility bills, providing a sustainable hot water solution. 4. Sewer and Drain Services We provide professional sewer line inspections, repairs, and drain cleaning to prevent clogs and ensure smooth operation of your plumbing system. 5. Leak Detection and Repair Utilizing advanced technology, we locate and fix hidden leaks quickly, preventing water damage and saving you money on your water bill. 6. Water Filtration Systems Enhance the quality of your water with our customized water filtration systems, designed to deliver safe and clean water for your household or business. 7. Commercial Plumbing Our team has the expertise to handle complex commercial plumbing systems, ensuring minimal downtime and efficient solutions for your business needs. 8. Fire Sprinklers Protect your property with our fire sprinkler installation and maintenance services, providing peace of mind and safety for your family or employees. 9. Property Maintenance Regular plumbing maintenance keeps your systems functioning at peak performance and prevents costly repairs down the road. Why Mill Valley Chooses Local Plumbing Experienced Technicians: Our certified plumbers bring years of expertise to every job, ensuring exceptional results. Customer-Focused Service: Your satisfaction is our top priority, and we tailor our services to meet your specific needs. Prompt Response: Plumbing emergencies can’t wait—our team is ready to respond quickly and resolve issues efficiently. Fair Pricing: We offer transparent, competitive pricing with no hidden fees, so you know exactly what to expect. Sustainability Commitment: As part of the Mill Valley community, we prioritize eco-friendly plumbing solutions whenever possible. Get Started Today! If you’re in Mill Valley and need expert plumbing services, look no further than Local Plumbing. From routine maintenance to complex installations, we’ve got you covered. 📞 Call us today at 415-484-0454 or visit our website at www.localplumbingca.com to schedule your appointment or request a free quote.
As a leading plumbing service provider in Ross, California, Local Plumbing is dedicated to delivering top-notch solutions for both residential and commercial clients. Our comprehensive range of services ensures that all your plumbing needs are met with professionalism and expertise. Our Services Boilers and Radiant Heating: We specialize in the installation, maintenance, and repair of boilers and radiant heating systems, ensuring efficient and reliable heating solutions for your property. Water Heaters: Our team handles traditional and tankless water heater services, including installation, repair, and maintenance, to provide consistent hot water supply. Heat Pump Water Heaters: We offer energy-efficient heat pump water heater solutions that can significantly reduce your energy consumption and costs. Commercial Services: Our expertise extends to commercial plumbing needs, ensuring that businesses in Ross receive prompt and reliable plumbing solutions. Water Filtration: We provide water filtration system installations and maintenance to ensure clean and safe water for your home or business. Sewer Line and Drains: Our services include sewer line inspections, repairs, and drain cleaning to prevent and address blockages and backups. Fire Sprinklers: We install and maintain fire sprinkler systems to enhance the safety of your property. Leak Detection: Utilizing advanced technology, we accurately detect and repair leaks to prevent water damage and conserve water. Property Maintenance: Our property maintenance services ensure that all plumbing systems are functioning optimally, preventing potential issues before they arise. Why Choose Local Plumbing? Experienced Professionals: Our team comprises skilled and certified plumbers committed to delivering high-quality workmanship. Customer-Centric Approach: We prioritize customer satisfaction, offering transparent communication and tailored solutions to meet your specific needs. Prompt and Reliable Service: Understanding the urgency of plumbing issues, we provide timely responses and efficient services to resolve problems swiftly. Competitive Pricing: We offer fair and transparent pricing, ensuring value for your investment without compromising on quality. Contact Us For all your plumbing needs in Ross, California, trust Local Plumbing to deliver exceptional service. Contact us today at 415-484-0454 or visit our website at www.localplumbingca.com to schedule an appointment or request a quote.
When it comes to home heating in Sonoma and Marin counties, the NTI TRX boiler stands out as a top choice. With its cutting-edge technology, superior efficiency, and environmental benefits, it’s no surprise that homeowners in this region are turning to these modern systems. Local Plumbing is proud to specialize in the installation and repair of NTI TRX boilers, making us the go-to plumbing company in Sonoma and Marin. Why Sonoma and Marin Homeowners Choose NTI TRX Boilers NTI (New Yorker Thermal Innovations) is a trusted name in the heating industry, and their TRX series boilers are designed with the needs of California homeowners in mind. With the fluctuating temperatures and growing emphasis on energy efficiency in Sonoma and Marin, these boilers deliver unmatched performance. Key features of NTI TRX boilers include: High Efficiency : With an AFUE (Annual Fuel Utilization Efficiency) rating of up to 95%, these boilers help homeowners in Sonoma and Marin save on energy costs while staying comfortable. Modulating Technology: The TRX series adjusts heat output to meet your home’s specific needs, reducing energy waste and ensuring consistent warmth. Compact Design: Perfect for homes in Sonoma and Marin where space may be limited, these wall-mounted boilers are sleek and efficient. Smart Controls : Advanced connectivity allows you to manage your heating system remotely, making it ideal for tech-savvy homeowners. Built to Last: Crafted from premium materials, NTI TRX boilers offer durability and long-lasting performance—a must for homes in Northern California. The Local Plumbing Advantage for NTI TRX Boiler Installation and Repair 1. Unmatched Expertise in Sonoma and Marin At Local Plumbing, we have years of experience installing and repairing NTI TRX boilers for homeowners throughout Sonoma and Marin counties. Our team understands the unique heating challenges of this region, ensuring every system we install is perfectly suited to your home. 2. Tailored Solutions Every home is different, and we take the time to assess your specific needs. Whether you’re upgrading an outdated system or installing a boiler for a new build, we customize our services to deliver the best results. 3. Reliable Repairs and Maintenance Already have an NTI TRX boiler? Our expert technicians provide comprehensive repair and maintenance services to keep your system running smoothly. We’re committed to ensuring your boiler performs efficiently year-round. 4. Local and Trusted As a locally owned and operated company, we pride ourselves on serving our Sonoma and Marin communities with integrity and professionalism. When you choose Local Plumbing, you’re supporting a business that genuinely cares about your satisfaction. Benefits of Installing an NTI TRX Boiler in Sonoma and Marin Energy Savings for Northern California Homes The high-efficiency rating of NTI TRX boilers means lower energy bills for homeowners in Sonoma and Marin. Say goodbye to high utility costs and hello to sustainable savings. Environmentally Friendly Heating With California’s push for greener energy solutions, NTI TRX boilers are a perfect fit. They produce fewer emissions and use less energy, aligning with the eco-conscious values of many Sonoma and Marin residents. Consistent Comfort The advanced modulating technology ensures even heating throughout your home, keeping you cozy during the cooler months without temperature fluctuations. Quiet Operation For those who value peace and quiet, NTI TRX boilers operate almost silently, making them an excellent choice for your home. Enhanced Home Value Installing a high-quality boiler like the NTI TRX not only improves your heating system but also boosts your property’s value—a significant benefit for homeowners in the competitive Sonoma and Marin real estate markets. Why Local Plumbing is Sonoma and Marin’s Trusted NTI TRX Boiler Partner Expert Installation and Repair Local Plumbing specializes in NTI TRX boilers, ensuring every system we work on meets the highest standards of performance and reliability. Customer-Centric Approach Our priority is your satisfaction. From the initial consultation to the final installation or repair, we’re with you every step of the way, providing clear communication and expert guidance. Fast and Reliable Service We understand that heating issues can’t wait. That’s why we offer prompt and efficient service to homeowners throughout Sonoma and Marin counties. Competitive Pricing High-quality heating solutions shouldn’t break the bank. Local Plumbing offers transparent pricing and flexible options to fit your budget. Get Started with Local Plumbing Today If you’re ready to upgrade your heating system or need professional repairs, Local Plumbing is here to help. Our team of experts specializes in NTI TRX boilers, providing top-tier service to homeowners in Sonoma and Marin counties. Contact Local Plumbing today to schedule your consultation. Let us show you why so many Sonoma and Marin residents trust us for their boiler installation and repair needs. Don’t wait—experience the comfort, efficiency, and reliability of an NTI TRX boiler with Local Plumbing by your side!
Are you putting your home on the market soon? Read our blog to learn why you should invest in leak detection services before selling your home.
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Phone: 415-484-0454
Email: Info@localplumbingca.com
Address: 323 Pine St. Suite F., Sausalito, CA 94965
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Emergency Services Available