TanklessCodes

Noritz error code 71

It depends on your series. Code 71 does not point at the same fault on every Noritz unit. Find your series in the table below before you buy a part or book anyone.

Typical cost: $300–$1,200 5 series documented

What code 71 means on each Noritz series

Series What it means Verdict Typical cost
EZ Series & NCC199CDV Gas valve drive circuit fault Call a pro $300–$1,200
NCC199 & NRC111 Gas solenoid valve drive circuit fault Call a pro $300–$1,000
NR50, NR66 & NR71 Gas solenoid valve drive circuit fault Call a pro $300–$1,000
NR98 & NR111 Gas solenoid valve drive circuit fault Call a pro $300–$1,000
NRC Series Gas solenoid valve drive circuit fault Call a pro $400–$1,000

Each series links to the full page: what the manufacturer's manual says for that generation, what you can safely check yourself, and what the repair should cost.

How much the answer changes between series

Every Noritz series that documents code 71 routes it the same way: a professional. That is unusual enough to be worth saying, because on this brand the same number often means different work on different generations. Here it does not — so you can act on this page without first establishing which unit you own.

The spread is real money. On the NCC199 & NRC111 the worst case is $1,000; on the EZ Series & NCC199CDV the same number can reach $1,200. Identify your series before you agree to anything.

Advertisement

Which Noritz do you have?

The model number is on the rating label on the unit itself. Match it against the list below — or use the full model-number decoder.

  • EZ Series & NCC199CDV — EZ98DV (EZTR50), EZ111DV (EZTR75), NCC199CDV, GQ-C2859WX-FF US, GQ-C3259WX-FF US, GQ-C3259WZ-FF US
  • NCC199 & NRC111 — NCC199-SV, NCC199-DV, N-0841MC-DV, NRC111-SV, NRC111-DV, N-0842MC-DV
  • NR50, NR66 & NR71 — NR50-OD, NR66-SV, NR66-OD, N-0531S-OD, NR71-SV, NR71-OD, N-0631S-OD
  • NR98 & NR111 — NR98-SV, NR98-OD, NR98-DVC, NC199-OD, NC199-DVC, N-0751M-OD, N-0751M-DV, N-0751M-DVC, NR111-SV, NR111-OD, NR111-DV, NC250-SV-ASME, NC250-DV-ASME, N-0931M-OD, N-0931M-DV, NC380-SV-ASME, N-1321M-ASME
  • NRC Series — NRC661-DV, NRC661-OD, NRC711-DV, NRC711-OD, NRC663-FSV (EZTR40), NR501-OD, NR662-OD

Where this comes from

Source: Noritz Service Manual — NRC663 FSV, EZ98DV, EZ111DV, NCC199CDV (Rev. Oct 2017) (p. 32), read Sep 2026 — the manufacturer's own documentation for this Noritz range.

Source: Noritz Service Manual — NR50 / NR66 / NR71 / NR98 / NCC199 / NRC111 / NR111 / NC380 (Rev. July 2011) (p. 55), read Sep 2026 — the manufacturer's own documentation for this Noritz range.

Source: Noritz Service Manual — NR50 / NR66 / NR71 / NR98 / NCC199 / NRC111 / NR111 / NC380 (Rev. July 2011) (p. 54), read Sep 2026 — the manufacturer's own documentation for this Noritz range.

Source: Noritz Service Manual — NR50 / NR66 / NR71 / NR98 / NCC199 / NRC111 / NR111 / NC380 (Rev. July 2011) (p. 56), read Sep 2026 — the manufacturer's own documentation for this Noritz range.

Source: Noritz Service Manual — NR501-OD, NR662-OD, NRC661, NRC711 (Rev. Dec 2013) (p. 28), read Sep 2026 — the manufacturer's own documentation for this Noritz range.

The same number on other brands

Code 71 is not a standard across the industry — every manufacturer publishes its own table. If your unit is not a Noritz, this number means something else entirely:

Parts, guides and symptoms behind code 71

Everything the 5 Noritz series point at for this code, in one list. A part named here is one the manufacturer's own procedure reaches for.

← All Noritz error codes