Rinnai Tankless Water Heater Code 12 [How To Fix]
On this troubleshooting guide on Rinnai Tankless Water Heater Code 12, what I am going to cover: Without further ado, let’s dive in. What Does Code 12 Mean On A Rinnai Tankless Water Heater? Code 12 on a Rinnai Tankless Water Heater means there is no flame or the flame sensor fails to detect any…