Noritz tankless water heater code Er67
Gas modulation assembly fault. Code Er67 means the same thing on all 2 Noritz series documented here — but the fix, and what it costs, is still worth reading for your exact unit.
What code Er67 means on each Noritz series
| Series | What it means | Verdict | Typical cost |
|---|---|---|---|
| NRCP | Gas modulation assembly fault | Call a pro | $0–$1,000 |
| NRCP Eco TOUGH | Gas modulation assembly fault | Call a pro | $0–$1,000 |
Each row opens the full page for that generation. We hold manuals for NRCP and NRCP Eco TOUGH, and each one gets its own reading of code Er67 — what Noritz documents, what you can safely check yourself, and what the repair should cost.
What each manual actually says
The table above compares 2 series in four columns, which is enough to route you and not enough to explain anything. This is the Noritz wording behind each row, one entry per manual, so you can see where the 2 readings of code Er67 agree and where they part company.
NRCP — Gas modulation assembly fault
Noritz calls this AGM abnormality, and the wiring tables in the same manual identify the AGM as a stepper-motor assembly with position feedback on the gas side. The remedy is to try the main power switch off and on. It is a fault in the mechanism that varies how much gas reaches the burner.
NRCP Eco TOUGH — Gas modulation assembly fault
Noritz calls this AGM abnormality, and the wiring tables in the same manual identify the AGM as a stepper-motor assembly with position feedback on the gas side. The remedy is to try the main power switch off and on, and Noritz states the conclusion if that fails: still the same error code means AGM failure. Manual reset.
Does it matter which Noritz you have?
NRCP and NRCP Eco TOUGH all route code Er67 the same way: a professional, at $0–$1,000. That makes it one of the Noritz numbers you can act on before working out which unit you own.
What to check first, whatever your series
These checks are on the manufacturer's list for every Noritz series that reports code Er67, so they are safe to work through before you have identified your exact unit. They also cost nothing.
- Cut the power for a minute and restore it — Noritz's only listed remedy.
That is 1 of the 2 checks documented for code Er67. The rest differ by generation, so if none of those explains it, go to your own series above.
Which Noritz do you have?
On the 2 series that report code Er67, the model number on the rating label starts NRCP — match yours against the 4 listed below. You can also use the full model-number decoder.
Where this comes from
Source: Noritz Service Manual — NRCP111-DV / NRCP98-DV (Rev. 09/19) (p. 62), read Sep 2026 — the manufacturer's own documentation for this Noritz range.
Source: Noritz Service Manual — NRCP1112-DV / NRCP982-DV Eco TOUGH (Rev. 05/19) (p. 58), read Sep 2026 — the manufacturer's own documentation for this Noritz range.
Parts, guides and symptoms behind code Er67
Code Er67 on these 2 Noritz series points at 1 guide, 2 parts and 2 symptoms, each named by the manufacturer's own procedure for this code.