29
Moderate
Noritz · Tankless Water Heaters
Condensate drainage problem detected.
Quick Answer
Error code 29 on your Noritz Tankless Water Heaters means: Condensate drainage problem detected.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Inspect and clear condensate drain line.
2
Verify proper drain slope and termination.
3
Check neutralizer media condition if installed.
4
Restart unit after restoring drainage.
5
Call service if drainage fault returns.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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