Button combinations: Combi Boiler tips
Short, practical technician tips on button combinations for combi boiler. Check each one against the manual for your exact model before acting.
View the last nine error codes (DHW + Up)
Rinnai · I-Series Plus Combi boilers IP060160C, IP090099C, IP090160C, IP090199C, IP120199C, IP150199C, IP175199C, IP199199C
Shows the stored error history on the I-Series Plus controller.
- Hold the DHW button for 2 s, then press Up as well (both together).
- Repeat the same press to exit.
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.
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.