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check vent cap and that the closet does not "seal", smothering the pilot, then check that the pilot is a good size when on, if not adjust it. if that dont work try replacing the thermocouple, it is what allows the valve to operate as long as the pilot is on.
Ailerons are operated from cockpit by pilot. they are connected to joy stick powered hydraulically. Auto pilot also has got control over it.
If the pilot flame is too high a thermocouples life could be shortened. Check the specs of the unit supplied by the gas valve for the working pilot pressure. Or put the gas valve in pilot and depress the pilot push button. Keep the button down with a small screwdriver, remove the thermocouple from the gas valve and check the millivolts on the thermocouple. Place one lead on the copper tubing and the other lead on the end of the thermocouple, the silver looking part that touches the inside of the gas valve. With the pilot flame on you should read anywhere from 22-29 millivolts. Anything below that is a sign that your thermocouple is failing. It might work for awhile, but it will probably go out in the middle of a long cold winter night. ;)
Pilot light would work but the main burner would not as the thermocouple proves that there is a pilot light to fire. The main gas valve would not open
Moduflex dual valve combines two, 4-way valves into one valve body, it features two independently operated valves in the Size 1 valve body. :)
It senses heat and generates a tiny electric current that triggers a valve in the regulator.
Check your fuses - they are operated separately
Replace it.
The gas valve is an electrically powered device that is wired at the end of a series circuit so that it can only be energized (open) if all of the safety switches upstream in the circuit are closed and the pilot flame is lit on a standing pilot furnace.
This is not a forum for Valve technical assistance. I would check with their website forums for help.
To replace a thermocouple on a hot water heater, start by turning off the gas supply and allowing the unit to cool. Remove the old thermocouple by unscrewing it from the gas control valve and pilot assembly. Insert the new thermocouple in the same position, tighten it securely, and relight the pilot light before turning the gas supply back on.
An example of work of a pilot: Someone who flies an airplane