The pilot light provides a small, continuous source for the ignition of the main burner in a gas heating system. In order to stay on all the time, the pilot light is fed a minute but steady supply of gas. If the tube supplying the gas becomes dirty and clogged, the pilot light may go out, requiring you to manually reignite it. Although the thermocouple protects your system in the event that the pilot light goes out, for added safety as well as convenience, you should not find yourself relighting the pilot light frequently.
Pledge: Pilot light will be adjusted and its gas tube cleaned.