Noritz EZ Series & NCC199CDV Code 32
Hot water thermistor fault. The outgoing hot water sensor is out of range. Noritz measures its resistance, checks for an open or short circuit, and checks the connection. This is the sensor the unit uses to hold your set temperature.
Also displayed as: F32
Part replacementThe verdict
Replace a part
A failing outlet thermistor shows up as water that swings hot and cold rather than as no hot water. Cheap part, service call to fit it, worth doing promptly because the failure mode is unpleasant in a shower.
Typical cost: $120–$450
US estimate for parts and labor. Prices vary by region and by who does the work — see how we estimate costs.
What the manual says
The meaning above is transcribed from the manufacturer's diagnostic documentation for the EZ Series & NCC199CDV — not averaged across the brand.
Source: Noritz Service Manual — NRC663 FSV, EZ98DV, EZ111DV, NCC199CDV (Rev. Oct 2017) (p. 32), read Sep 2026 — the manufacturer's own documentation for this exact series.
What you can safely check
- Warn the household that outlet temperature may not be reliable until this is fixed.
- Book a service call.
Code 32 on other Noritz series
The same code number can mean something different on another series — make sure you're reading the page for your exact unit:
Don't confuse this with
5 other Noritz EZ Series & NCC199CDV codes point at a thermistor too. They are different components in different places, and ordering a part against the wrong one is the most common way this fault gets expensive: