Navien Parts and Replacement Items

    Navien tankless water heaters have been around for over a decade now, there are bound to be some Navien parts that fail and need to be replaced. Common part inquires we get here are for O rings, control boards, flow sensor, and mixing valve transformers.

    We do carry parts but we are located in Toronto, Canada. Thus we have found that Amazon is a great vessel to help people purchase Navien replacement parts throughout North America and abroad. Check out the links and items listed to see if we have what you are after. If not feel free to send us a quick message and we might be able to help.

    Common Navien Replacement Parts

    Navien Mainboard

    30000182A


    Inlet Water Filter

    30008351A


    Flow Sensor

    30010537A


    O-Ring Kit

    30009933A

    Mixing Valve Transformer

    30002494A

    DHW Flow Sensor

    30012033B

    Water Pressure Sensor

    30014699A

    Remote Controller

    30009757A

    Water Pressure Sensor

    30014699A

    Air Pressure Flow Sensor

    30000663A

    Isolation Valves

    44043PR

    Circulation Pump

    30000456B

    Intake Air Collar

    Bh2505400B

    Gas Conversion Kit

    30012475A

    Navien Gas Valve

    30008429A

    Packing Ring Epdm

    20006958A

    Navien Thermistor

    30008366A

    Flame Rod

    30012226A

    Water Adjustment Valve

    30008245A

    Navien PCB

    30008300A

    Cold Water Filter

    30007878A

    Navien Thermostat

    30008220A

    Navien PCB Bpard

    30012262A

    Air Pressure Sensor

    30010238A

    Flame Rod Assembly

    30004680A

    Air Vent

    30012277A

    Dual Ventry

    30012770A

    High Limit Switch

    30002583A

    Error Codes

    All tankless systems at times can give an error code if one of the sensors is triggered or something fails.  Sometimes its as simple as just opening the front and replacing the failed sensor, other times you may need to hire a technician. Try cross referencing your error on our Navien error code page here.  This could help you narrow down the problem and find the replacement if needed.


    Purchase A Rinnai Tankless Water Heater

    Rinnai RUR

    Rinnai RLX

    Rinnai RL

    Rinnai V

    Rinnai RUCS

    Rinnai RU

    Purchase A Tankless Water Heater