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