[QUOTE=MMNETSEA;34564]Is the copper tube an integral part of the Valve? - resulting :- heat the tube = gas expands = valve opens = sends gas to burners?
Here's a pdf note from Force 10:-
Ahoy MMNETSEA ,,,,, T Y , for your reply and the PDF file .
Is the copper tube an integral part of the Valve? Answer : NO , the end of the copper tube has a brass acorn soldered on to it, and a brass gland nut compresses that acorn into the aluminum valve housing .
For clarification,,,, the thermocouple head at the burner looks like the illustration in the PDF file, that you listed and also, saw, too .
The other end of the small copper tube , has a brass acorn , soldered on to it , a nut screws into the aluminum valve body , and compresses the acorn , to make a positive contact between the end of the copper tube, and a spot inside the aluminum valve body .
There is no observable green corrosion in either end of the connection,,, all connections are bright brass .
Just why it never worked from the initial installation, is still a mystery ,,,,,, as the right side burner works just fine .
My next step, is to remove the thermocouple from the working, right burner, then replace it with the left burner thermocouple, to see what happens ?????
I think that if the good right burner fails to stay lit, with the left burner thermocouple installed,,,, I would suspect a faulty thermocouple .
Do you know if all thermocouples use electricity (mili volts) or could thermal pressure activate the valve in some way ,,, to stay on ?
Do you know what the small copper tube contains ? Is it a liquid or a gas ? How can that tube be recharged, if needed ?
There is no electrical wire conductor , to either burner, thermocouple or aluminum valve , only the small copper tube .
Have I missed something, in my observations ? Remembering the right burner works just fine, with only that small copper tube , no wires .