Rinnai Error Code 18

Fault Code 18: Thermocouple output error

Rinnai Fault Code 18

Fault: Thermocouple output 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 Category: Tag: