Navien Tankless Water Heater & Boiler Service
Certified experts in Navien condensing technology, tankless water heaters, and high-efficiency boilers. From NPE series installation to NCB combi-boiler repair, we deliver superior service.
Navien Product Lines We Service
NPE Series
Premium condensing tankless water heaters
Models:
Key Features:
- ComfortFlow® technology
- Up to 0.97 UEF
- Dual stainless steel heat exchangers
- WiFi ready
NCB-E Series
High-efficiency combi-boilers
Models:
Key Features:
- 95% AFUE efficiency
- Space heating & DHW
- Turn down ratio 7:1
- Advanced controls
NHB Series
Condensing heating boilers
Models:
Key Features:
- 95% AFUE rating
- Stainless steel heat exchanger
- Low NOx emissions
- Cascade capable
NFC Series
Fire tube combi-boilers
Models:
Key Features:
- 95.5% AFUE efficiency
- Fire tube heat exchanger
- Built-in pump
- PVC venting
Common Navien Issues We Resolve
Error Code E003
Ignition failure error
Solution: Check gas supply, clean flame rod, verify proper venting
No Hot Water
Unit not producing hot water
Solution: Check flow sensor, descale heat exchanger, verify recirculation settings
Error Code E012
Flame loss during operation
Solution: Clean or replace flame rod, check gas pressure, inspect venting
Fluctuating Temperature
Water temperature inconsistent
Solution: Adjust ComfortFlow settings, check for crossover, clean inlet filter
Error Code E016
Overheating detected
Solution: Check circulation pump, descale system, verify flow rates
Loud Operation
Unusual noises during operation
Solution: Check for scale buildup, verify proper installation, inspect exhaust system
Need Navien Service Today?
Our certified Navien technicians are ready to help with installation, repair, or maintenance.
Frequently Asked Questions
How often should I service my Navien tankless water heater?
Navien recommends annual maintenance for optimal performance. This includes descaling the heat exchanger, cleaning the inlet water filter, checking the flame rod, and verifying proper combustion. In areas with hard water, more frequent descaling may be necessary.
What is ComfortFlow technology in Navien units?
ComfortFlow is Navien's built-in recirculation technology with a buffer tank and pump. It eliminates the "cold water sandwich" effect, provides consistent hot water temperature, and reduces wait time for hot water without requiring an external recirculation line.
Why is my Navien showing an error code?
Error codes indicate specific issues that need attention. Common codes include E003 (ignition failure), E012 (flame loss), and E016 (overheating). Each code has specific troubleshooting steps. Our certified technicians can quickly diagnose and resolve any error code issues.
Can I convert my Navien unit from natural gas to propane?
Yes, most Navien models can be converted between natural gas and propane using a conversion kit. This must be done by a certified technician to ensure proper gas pressure settings, orifice changes, and combustion adjustments for safe operation.