Noritz · Water heater
Code 29 Condensate drainage problem
What this code means
On condensing models, the condensate line isn't draining properly.
Most likely causes
- Debris (leaves, insects) blocking the condensate line
- Incorrectly routed or kinked condensate piping
What to try first
Check the exterior condensate drain termination for visible blockage.
Good news: this one is often fixable without a service call. If it persists after the steps above, have it looked at.
Find the part on Amazon →FAQ
What does Noritz error code Code 29 mean?
Condensate drainage problem. On condensing models, the condensate line isn't draining properly.
Can I fix Noritz code Code 29 myself?
Often, yes. Check the exterior condensate drain termination for visible blockage.
What causes Noritz code Code 29?
The most common causes are: debris (leaves, insects) blocking the condensate line; incorrectly routed or kinked condensate piping.
Other Noritz water heater codes
All Noritz water heater error codes →
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This information may contain errors or not apply to your exact model — always double-check it against your appliance's own manual before acting. If there's any chance of a gas, fire, electrical, carbon monoxide, or other safety hazard, stop and call a licensed professional or the appropriate agency (e.g. your gas utility) instead of relying on this page alone.