What does error code 12 mean on Rinnai?
What does error code 12 mean on Rinnai? Others do not and a technician will need to be called to resolve the problem. Error code 12 has troubleshooting steps you can work through before calling a technician. Error code 12 indicates your Rinnai hot water system has a flame failure or low gas flow. If you encounter error code 12, you can try the following steps to fix the problem: Is there a problem with the Rinnai Water Heater? Rinnai technical has no service bullitins, or mention of this issue in their troubleshooting guide. With no error codes, there is...