Rinnai Error Codes
20 Rinnai codes. Jump to your appliance:
Rinnai Tankless Water Heater Codes20
- 02 Code 02 — No Burner Operation During Freeze Protection
- 03 Code 03 — Power Interruption During Bath Fill
- 10 10 — Air Supply or Exhaust Blockage
- 11 11 — No Ignition
- 12 12 — Flame Failure
- 14 14 — Thermal Fuse / Overheat Cutoff
- 16 16 — Outgoing Water Over-Temperature
- 25 25 — Condensate Drain Blocked (Condensing Models)
- 31 31 — Burner Sensor (Combustion Offset) Fault
- 32 32 — Outgoing Water Thermistor Fault
- 33 33 — Heat Exchanger Thermistor Fault
- 34 34 — Combustion Air Temperature Sensor Fault
- 51 Code 51 — Inlet Water Temperature Thermistor Fault
- 52 52 — Modulating Solenoid Valve Signal Abnormal
- 61 61 — Combustion Fan Motor Fault
- 65 65 — Water Flow Control Valve Fault
- 70 70 — PCB / Control Board Fault
- 71 71 — Gas Solenoid Drive Circuit Fault
- 72 72 — Flame Sensor Fault
- LC LC — Scale Buildup / Descale Reminder