Perhaps it is because you have no supplies of gas left in your tank.
Rinnai propane heater error code 11.
No flame in the combustion chamber gas installation with the gas regulator.
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.
Have a tech call them from on site and trouble shoot the unit.
Some units have multiple flame rods.
I dont think it s a flow issue.
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.
You can try the following to fix the problem.
Check your hot water system for any visible damage or loose parts locate your gas supply and ensure it is turned on.
I have a rinnai hydronic furnace and tankless water heater 2 br home.
It means that your water heater broke well obviously thanks to the heating system that is not working.
Code suggested prob with ignition.
Verify the proper flame rod wire is plugged into the proper flame rod.
2 days ago started to get code 11 flashing and furnace stopped working.
Verify the flame rod is tight in its mounting bracket.
Rinnai error code 11 is an indication that there is no ignition in or no gas supply to your hot water system.
11 is no ignition and 12 is flame failure.
Technician service comp.
Which means the unit had enough flow through it to call the unit on it just failed to light or maintain ignition.
A loose flame rod is called a floating flame rod and will result in code 11 s or 12 s.
What does that mean.