Turned thermostat on but when you switch to heat cool air comes out and when switched to auto you only hear humming sound and then nothing comes on

Where is pilot located on goodman unit to light

Model of furnace please,, and maybe the age, could be it doesn`t have a pilot,maybe a electronic igniter

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Originally Posted by agnes ramsey

where is pilot located on goodman unit to light

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Inside the unit very close to the main burners! But wmproop is right - it may be an electric ignitor - still located very close to the main burners. In which case it could be your ignitor or your thermocouple.