Rinnai Boiler: View the last nine error codes (DHW + Up)
View the last nine error codes (DHW + Up) on a Rinnai boiler: Shows the stored error history on the I-Series Plus controller.
Applies to: I-Series Plus Solo (heat-only) boilers IP060S, IP090S, IP120S, IP150S, IP175S, IP199S
How to fix view the last nine error codes (dhw + up): step by step
- Hold the DHW button for 2 s, then press Up as well (both together).
- Repeat the same press to exit.
If the unit shows an error code, look it up: Rinnai Boiler codes
Models
I-Series Plus 150K and smaller
I-Series Plus 175K and higher
Source: Rinnai Troubleshooting I-SERIES Plus Boiler Diagnostic Codes (800000375), PC Board Buttons table (code 520) p.30; Appendix F p.58; code 710 p.40. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.