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.

    Circulation Pump for Navien Tankless

    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 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.

    There are a lot of parts listed here, try our search bar or alternatively hit ctrl and f on your keyboard and your computer will search this page for any keyword you type in.

    All the Navien Error codes and descriptions can be found here

    Common Navien Replacement Parts

    Circulation Pump

    Description – Navien 30010780B Circulation Pump

    Part# 30010780B

    Purchase Link – Navien 30010780B Circulation Pump

    Additional Info – Old Part Numbers: 30010780A, 30008355A, 30008355B for All Npe Models

    Motorized 3-Way Valve

    Description – Navien 30004831C Motorized 3-Way Valve

    Part# 30004831C

    Purchase Link – Navien 30004831C Motorized 3-Way Valve

    Additional Info – Navien 30004831B / 30004816A Motorized 3-Way Valve For Ch / Ncb Series (Old # Aavc9Ex00018A /Aavc9Ex00009A) Ch Series Parts ncb Series Parts

    Cold Water Filter

    Description – Navien 30007878A Dhw Cold Water Filter

    Part# 30007878A

    Purchase Link – Navien 30007878A Dhw Cold Water Filter

    Additional Info – WATER INLET FILTER

    Navien Fan

    Description – Navien Fan FB-1K050 NPE

    Part# 30008834A

    Purchase Link – Navien Fan FB-1K050 NPE

    Additional Info – FAN FOR NPE UNITS

    Ignition Transformer

    Description – Navien Ignition Transformer

    Part# 30010455A

    Purchase Link – Navien 30010455A Ignition Transformer

    Additional Info – Ignition Transformer For Npe Series

    Water Adjustment Valve

    Description – Navien WATER ADJUSTMENT VALVE, for NPE-A models

    Part# 30008245A

    Purchase Link – Navien WATER ADJUSTMENT VALVE, for NPE-A model

    Additional Info – Replacement Valve NPE Series

    Flame Rod NPE NCB Series

    Description – Navien Flame Rod Assembly NPE NCB Series

    Part# 30012226A

    Purchase Link – Navien Flame Rod Assembly

    Additional Info – Navien Flame Rod Assembly fpr NPE and NCB

    Flame Rod (Nat Gas)

    Description – Navien Flame Rod Assembly for CC CH CR models

    Part# 30004680A

    Purchase Link – Navien Flame Rod Assembly

    Additional Info – Fits a variety of Navien models – replacement for these Old Part Numbers: PH1603058A, PH1603058D, PH1603058E, 20016776A, 30004677D

    O-Ring Kit

    Description – Navien 30009933A O-Ring Kit

    Part# 30009933A

    Purchase Link – Navien O-Ring Kit

    Additional Info – Navien 30009933A O-Ring Kit Navien 30009933A O-Ring Kit NAV30009933A

    Navien Gas Valve

    Description – Navien Gas Valve for all models

    Part# 30002208A

    Purchase Link – Navien Gas Valve

    Additional Info – Old part number BH0901018A

    Silicon O-Ring Kit

    Description – O-Ring kit for NP-240, NP-240E

    Part# 20018013A

    Purchase Link – Navien O-Ring Kit

    Additional Info – Navien 20018013A Silicon O-Ring For NP-240, NP-240E Water Heater, 31.5mm Dia. x 3.5mm

    Navien O-Ring (P16)

    Description – P16 Navien O-Ring

    Part# 20017210A

    Purchase Link – 20017210A P16 Navien O-Ring

    Additional Info – Old Part Number BH2422017A or BH22422030A

    Navien Flow Sensor

    Description – Brand new Navien flow sensor

    Part# 30010537A

    Purchase Link – 30010537A Navien flow sensor

    Additional Info – Fits most Navien tankless models.

    Flame Rod (Propane)

    Description – Navien 30004684A Flame Rod Assembly (Propane)

    Part# 30004684A

    Purchase Link – Navien Propane Flame Rod Assembly

    Additional Info – Navien 30004684A Flame Rod Assembly (Propane) Old part# Ph1603059D/E for: CH/CC/CR Series (Propane Only).

    Air Pressure Flow Sensor

    Description – Navien 30000663A Air Pressure Flow Sensor (Aps)

    Part# 30000663A

    Purchase Link – Navien Air Pressure Flow Sensor (Aps)

    Additional Info – old part number NASS9EX00009 for: CH/CC/CR/NR/NP Series

    Water Pipe Adapter (A)

    Description – Navien 30008568A Water Pipe Adapter (A)

    Part# 30008568A

    Purchase Link – Navien Water Pipe Adapter

    Additional Info – Navien 30008568A Water Pipe Adapter

    Water Adjustment Valve

    Description – Navien 30004834B Water Adjustment Valve

    Part# 30004834B

    Purchase Link – Navien 30004834B Water Adjustment Valve

    Additional Info – Navien 30004834B Water Adjustment Valve For NR/NP/CC/CR Series — replaces part # Aavc9Exfc003B

    Space Heating Strainer

    Description – Navien 30002513D Space Heating Strainer

    Part# 30002513D

    Purchase Link – Navien 30002513D Space Heating Strainer

    Additional Info – Navien 30002513D Space Heating Strainer For Ch Series — old part# Bh1301020Bch

    Bypass Mixing Valve

    Description – Navien 30004837B Bypass Mixing Valve

    Part# 30004837B

    Purchase Link – Navien 30004837B Bypass Mixing Valve

    Additional Info – Navien 30004837B Bypass Mixing Valve For NR/NP replaces part Aavc9Exmix01B

    2-Way Valve

    Description – Navien 30004825A 2-Way Valve

    Part# 30004825A

    Purchase Link – Navien 30004825A 2-Way Valve

    Additional Info – Navien 30004825A 2-Way Valve Replaces Aavc9Ex00014A Navien NP Condensing Tankless Gas Water Heater

    Dhw Flow Sensor

    Description – Navien 30012033B Dhw Flow Sensor

    Part# 30012033B

    Purchase Link – Navien 30012033B Dhw Flow Sensor

    Additional Info – Navien 30012033B Dhw Flow Sensor Replaces 30012033A Ncb-180 Ncb210 Ncb-240.

    Navien Circulation Pump

    Description – Navien 30012768A Circulation Pump

    Part# 30012768A

    Purchase Link – Navien 30012768A Circulation Pump

    Additional Info – Navien 30012768A Circulation Pump For NCB Series 120V (Replaces pct1W0725B) For NCB Models

    Mixing Valve Transformer

    Description – Navien 30002494A Mixing Valve Transformer

    Part# 30002494A

    Purchase Link – Navien 30002494A Mixing Valve Transformer

    Additional Info – Navien 30002494A Mixing Valve Transformer (Old # Bh1205013A)

    Water Pressure Sensor (Lwco)

    Description – Navien 30014699A Water Pressure Sensor (low water cut off) LWCO

    Part# 30014699A

    Purchase Link – Navien 30014699A Water Pressure Sensor (Lwco)

    Additional Info – Navien 30014699A Water Pressure Sensor (lwco) For CH/NCB Series (Old # Bh2507535A / 20007924A )

    NCB Front Panel Upgrade

    Description – Navien 30012269B Ncb Front Panel Kit for Navilink Wi-Fi Upgrade

    Part# 30012269B

    Purchase Link – Navien NCB Front Panel Kit Wi-Fi Upgrade

    Additional Info – Navien 30012269B NCB Front Panel Kit For Navilink Wi-Fi Upgrade -Kdc-350Pfor NCB Models Manufactured Before 03.22.16.

    Control Board NPE-A

    Description – Navien 30008300A Pcb (Kdc-330-5M)

    Part# 30008300A

    Purchase Link – Navien 30008300A Pcb (Kdc-330-5M)

    Additional Info – Navien 30008300A Pcb (Kdc-330-5M) For NPE (A) Series

    Control Board CH Series

    Description – Navien 30000181A PC Board (Kdc-323)

    Part# 30000181A

    Purchase Link – Navien 30000181A PC Board (Kdc-323)

    Additional Info – Navien 30000181A PC Board (Kdc-323)For CH Series.

    Circulation Pump

    Description – Navien 30000456B Circulation Pump

    Part# 30000456B

    Purchase Link – Navien 30000456B Circulation Pump

    Additional Info – Navien 30000456B Circulation Pump CH series

    Navien Check Valve

    Description – Navien 30008359A Check Valve

    Part# 30008359A

    Purchase Link – Navien 30008359A Check Valve

    Additional Info – Navien 30008359A Check Valve For NPE Series — old part # 30008360Anpe

    Buffer Tank T-Adapter

    Description – Navien 30002193C Buffer Tank T-Adapter (Blue Thermostat)

    Part# 30002193C

    Purchase Link – Navien Buffer Tank T-Adapter (Blue Thermostat)

    Additional Info – Navien 30002193C Buffer Tank T-Adapter (Blue Thermostat) Pa66 For: Cc / Cr Series Replaces Bh0712002C

    Hot Water Outlet Pipe

    Description – Navien 30008338A Hot Water Outlet Pipe

    Part#

    Purchase Link – Navien 30008338A Hot Water Outlet Pipe

    Additional Info – Navien 30008338A Hot Water Outlet Pipe Assembly for Np/Np240/Np-240E Models

    Thermistor (Red Wire)

    Description – 30007955A Navien Thermistor (Red Wire)

    Part# 30007955A

    Purchase Link – Navien Thermistor (Red Wire)

    Additional Info – Old Part Number BH1403083A