Stays lit-water heater pilot light

[doorgunner]

Pilot light stays lit when I turn the blue knob to off position, thermostat set to minimum.
Only way I can get it to go out is to shut off the propane tank feed line.
Atwood, 1 year old GC6AA-8.
I discovered this while flushing the tank.
Now I'm wondering if I turn on the propane tank will raw propane be leaking out of the pilot light until I relight it?
I want to tow next week, always turn off the water heater but leave the fridge on.
Something broken?

[Pfredd]

If you can turn the gas back on and light the pilot light without turning the blue knob, then yes, you will leak propane.

There SHOULD be an individual shut off valve for each propane appliance. It is normally located on the gas line that runs underneath the trailer.

As for what is wrong, sounds like a bad gas controll. Have it looked at by a RV dealer, especially if it is still under warranty....

[doorgunner]

Update;
When I turn the propane tank on I light the stove to get things going. Then I went back to the WH and put my flame on the pilot- nothing for 5 minutes. Then I move the blue knob from off to pilot, apply the flame and pilot lights.
Then I move the blue knob to off and the pilot stays lit, weird.
So I shut off the tank and the cycle goes on.
I'm NOT a fan of most RV repair places, I just need to understand how this thing works. You know something like theory of operation, If I can understand it then I can bypass it, Kinda like the law.

[azflycaster]

Another concern would be, what happens if the pilot light blows out. Will the gas stop flowing after the thermocouple cools off?

[Excella CM]

Turn it to "off" and blow the pilot out. Wait five minutes and see if you can relight it without turning the knob to "pilot" . If that is the case you won't have a safety problem or a leak. What you want to establish is that the pilot safety system is functional.