Navien- Tankless Water Heater Error Codes
Error Code |
Description |
|---|---|
|
Error Code E03 |
Ignition Failure- Ensure that the main gas supply valve is open |
|
Error Code E04 |
False Flame Detection Ensure that the electrical cord is properly grounded |
|
Error Code E12 |
Flame Loss
|
|
Error Code E16 |
Overheating of heat exchanger
|
|
Error Code E30 |
Abnormal exhaust temperature. Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E46 |
Abnormal Operation: Limit Control Contact Technical Support at 1-800-519-8794 or a Licensed Navien Technician |
|
Error Code E47 |
Abnormal operation: Exhaust Thermostat Contact Technical Support at 1-800-519-8794 or a Licensed Navien Technician |
|
Error Code E60 |
Error Code E060: Abnormal Operation: Dual Venturi Contact Technical Support at 1-800-519-8794 or a Licensed Navien Technician |
|
Error Code E109 |
Abnormal Operation: Fan Motor
|
|
Error Code E110 |
Abnormal Air Pressure
|
|
Error Code E205 |
Heating supply thermistor open or short circuit Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E218 |
Heating return thermistor open or short circuit Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E351 |
Abnormal Auto feeder valve (make-up water) Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E352 |
High water pressure Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E353 |
Abnormal operation: water pressure sensor Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E407 |
Hot water outlet thermistor open or short circuit Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E421 |
Cold water inlet thermistor open or short circuit Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E439 |
Abnormal operation: flow sensor Reset the boiler from the front panel. |
|
Error Code E515 |
Abnormal operation: PCB Ensure that the electrical cord is properly grounded. Reset the boiler from the front panel. |
|
Error Code E517 |
Abnormal operation: DIP switch setting Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E594 |
Abnormal operation: EEPROM Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E615 |
Abnormal operation: input and memory Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E736 |
Abnormal operation: cascade communication Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
|
Error Code E740 |
Abnormal operation: outdoor temperature sensor (appears only when the outdoor reset curve is enabled). Ensure that the outdoor reset curve is configured properly. Check the outdoor temperature sensor wiring connection. |
|
Error Code E777 |
Abnormal operation: LWCO Check the LWCO wiring connection Ensure that the system water level is appropriate. Add make-up water to the system if necessary. |
|
Error Code E782 |
Abnormal operation: main panel communication Call or Text Blue Conservation’s trained Navien specialists at 484-469-0718. |
