Noritz tankless water heater code Er32
Hot water thermistor open or short. Code Er32 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 Er32 means on each Noritz series
| Series | What it means | Verdict | Typical cost |
|---|---|---|---|
| NRCP | Hot water thermistor open or short | Part replacement | $120–$450 |
| NRCP Eco TOUGH | Hot water thermistor open or short | Part replacement | $120–$450 |
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 Er32 — 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 Er32 agree and where they part company.
NRCP — Hot water thermistor open or short
The hot water outlet sensor is open circuit or short circuit. It shares the remedies Noritz gives for the other thermistors: check the sensor and connectors, measure resistance, replace it if open or short. This is the sensor the unit uses to hold your set temperature.
NRCP Eco TOUGH — Hot water thermistor open or short
The hot water outlet sensor is open or short circuit, sharing the remedies Noritz gives for the other three sensors: check the sensor and its connections, check resistance and replace if zero, contact technical support. Auto reset. This is the sensor the unit uses to hold your set temperature.
Does it matter which Noritz you have?
NRCP and NRCP Eco TOUGH all route code Er32 the same way: a replacement part, at $120–$450. 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 Er32, so they are safe to work through before you have identified your exact unit. They also cost nothing.
- Warn the household that outlet temperature may be unreliable until it is fixed.
- Book a service call.
That is 2 of the 2 checks documented for code Er32. 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 Er32, 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 Er32
Code Er32 on these 2 Noritz series points at 1 part and 2 symptoms, each named by the manufacturer's own procedure for this code.