Rinnai Propane Heater Error Code 11

Some units have multiple flame rods.
Rinnai propane heater error code 11. I have a rinnai hydronic furnace and tankless water heater 2 br home. 11 is no ignition and 12 is flame failure. A loose flame rod is called a floating flame rod and will result in code 11 s or 12 s. I dont think it s a flow issue.
No flame in the combustion chamber gas installation with the gas regulator. Rinnai error code 11 is an indication that there is no ignition in or no gas supply to your hot water system. Have a tech call them from on site and trouble shoot the unit. Verify the proper flame rod wire is plugged into the proper flame rod.
You can try the following to fix the problem. Rinnai tech support is excellent. Verify the flame rod is tight in its mounting bracket. A quick check to verify correct wiring is to look at the stamped letter on the bracket at flame rod sample a y indicates yellow r red and b blue.
Perhaps because your ignition system is not working well. Check your hot water system for any visible damage or loose parts locate your gas supply and ensure it is turned on. Here is the summary of what can go wrong with your rinnai water heater and what to look for after the error code 11 shows up on the remote controller. What does that mean.
This includes the following. Perhaps it is because you have no supplies of gas left in your tank. 2 days ago started to get code 11 flashing and furnace stopped working. Which means the unit had enough flow through it to call the unit on it just failed to light or maintain ignition.