Disassembly of the combination gas valve. The control is compared to the gas chain control illustrated on an earlier video. This valve is used in many gas appliances. I show how the thermocouple works and how it is used to keep the unit from running without a pilot flame. I also discuss the regulator and how to adjust it.
This video is part of the gas furnace series of training videos made to accompany my website: www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. If you have suggestions or comments they are welcome.
If you are a homeowner looking to repair your own appliance, understand that the voltages and fuels used can be lethal and can cause a fire or explosion. Know your limits.

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