Rinnai Error Code 73

Fault Code 73: Communication error

Rinnai Fault Code 73

Fault: Communication error

Applies to: Rinnai Indoor Gas Heater

Your Rinnai gas 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: 428-2-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-2-3-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1 Category: Tag: