If you notice your gas furnace has several knobs, turn both of them off & wait for a minimum of 3 hours for all the residual gas to clear from your gas furnace
Unlike aged oil furnaces that had to be lit by hand, I’ve heard that current Heating & A/C systems have an automatic pilot light that stays on long enough in order to light your gas furnace. The pilot light is controlled by your home’s control unit & lights whenever necessary. When the automatic pilot light doesn’t turn on when needed, you certainly have to reset or relight by shutting the supply of gas to the gas furnace. This extremely straight-forward act will reset your entire program & the pilot! You do not need any professional Heating & A/C tool to reset your pilot light. Instead, you need to follow extremely straight-forward steps to relight the pilot carefully, but first, you need to lower your gas furnace’s control unit to its lowest settings, chop all the power supply to your family gas furnace by turning off the circuit breaker or flipping the OFF switch to your gas furnace. Remove your gas furnace’s access panel atop the gas control knob. Often, however, this cover is situated at your gas furnace’s bottom, but switch off your gas control knob. If you notice your gas furnace has several knobs, turn both of them off & wait for a minimum of 3 hours for all the residual gas to clear from your gas furnace. After 1 to 3 hours, turn on the gas control knobs & update your gas furnace’s access panel. Finally, you know it would be best if you switched on the electrical supply to your gas furnace.The Heating & A/C professional you trust should be able to service & restore your Heating & A/C unit to its optimum functioning.