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.

In all cases, you may be able to clear the Error Message simply by turning the heater OFF, then ON again. If the Error Message still remains or returns on the next operation, please contact your nearest service contact and arrange for a service call.
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: