Use the specs (found on the label attached to your water heater) to see the proper inlet pressure and check if the unit meets the minimum required. Your gas water heater should get enough amount of gas. If your tankless water heater uses propane, check if there is enough gas in the gas tank (cylinder). While the error 12 is a flame error code, the flame rod is not the only culprit - there are several other reasons for the flame failure: No gas supplyĬheck that all gas valves – on a water heater and gas pipes are open. If water is not equipped with the control panel, the same error code appears on the remote controller. You can see diagnostic information on the control panel, where you set the temperature. Here is the list of the main causes of a Rinnai error code 12, also related to "no flame" and flame failure:Īn error code 12 found on the Rinnai tankless water heater means " no flame" or a water heater didn’t recognize a flame in the combustion chamber. It can be found on all models, including V, RU, RL, and RUR series. We cover all metropolitan suburbs in Adelaide, Melbourne, Perth, Sydney, Brisbane and Canberra, so contact us today.An error code 12 is one of many Rinnai diagnostic codes used to identify problems in your Rinnai tankless water heater. Just ask our friendly team about eligibility criteria. Plus, we offer $0 deposit, interest free payment plans** to make payment a breeze. Our technicians will thoroughly inspect all components of your water system to ensure error code 12 is completely rectified. That’s why we’re available 24/7 and will always try to have a technician to your door within an hour of your call*. We understand being without hot water is disruptive and inconvenient. Jim’s Plumbing has fully qualified and insured technicians who can resolve error code 12 on your Rinnai hot water system. Rinnai Hot Water Heaters That Display Error Code 12 It also voids any warranties covering your system. Doing so creates an extreme safety hazard to you and your property. Please note that you should never attempt to take apart your hot water system in search of faults. If you have completed these steps and error code 12 remains, your next step is to call a qualified technician. Check there are no obstructions to the flue outlet.Check gas is turned on at the water heater.Check gas is turned on at the gas metre or cylinder. ![]() If you encounter error code 12, you can try the following steps to fix the problem: Rinnai Error Code 12 TroubleshootingĮrror code 12 indicates your Rinnai hot water system has a flame failure or low gas flow. Error code 12 has troubleshooting steps you can work through before calling a technician. Others do not and a technician will need to be called to resolve the problem. Some error codes have troubleshooting steps you can take to find and fix faults. If there is a fault, an error code is displayed on the system or temperature controller. Rinnai gas continuous flow water heaters have an error code feature. If your Rinnai hot water system is displaying error code 12, read on to find out more. Rinnai Continuous Flow Water Heater Fault or Error Code 12 Troubleshooting Guide
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