Rinnai Boiler: Read the technical read-out and error history
Read the technical read-out and error history on a Rinnai boiler: Hold STEP 5 s to switch the display to the technical read-out (status digit left, supply temperature / water pressure right). The ERRO chapter stores the last error (Err.L) and five earlier ones (Err.1 to Err.5) with status, T1, T2, kW and pump %.
Applies to: E50CRN; E75CRN; E75CRP; E110CRN; E110CRP
How to fix read the technical read-out and error history: step by step
- Hold STEP 5 s to toggle the technical read-out
- For history: enter C123, press MODE until ERRO, STEP through Err.L to Err.5
If the unit shows an error code, look it up: Rinnai Boiler codes
Source: Rinnai E-Combi Series Installation & Servicing Instructions (8U516009 V0116), p.54, 59. 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.