Rinnai Error Code 90

Fault Code 90: Communication error detected between the main PCB and Wi-Fi module

Rinnai Error Code 90

Fault: Communication error detected between the main PCB and Wi-Fi module

Applies to: Rinnai Timberflame IB35 ETR and Rinnai Neo Series Units.

Your Rinnai heaters are fitted with self diagnostics electronics. When a fault occurs, the heater will shut down and the fault with a pair of digits will be displayed on the display screen.
SKU: 428-2-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-2-2-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1 Category: Tag: