If you are talking about the indoor fan on the unit and it is a electric heater then yes there is a fan relay that control the fan operation that is common to fail on these units.. it is fairly easy to replace and can be purchased on line at diiferent heating sites... type in goodman heating parts in a search engine and locate the relay you need... if you are talking about the outdoor fan motor then need to check a few things there is a capacitor that helps motor start that could be weak /by the way there is also a capacitor on the indoor unit you want to check to .... it usually is 5-20 microfarads that requires a meter or tester that can check the farads on capacitor... make sure these are good... the outside unit will sometimes not have the fan motor run if the unit is in a defrost cycle but should only stay of for 5-15 minutes at a time and only if it is in a defrost cycle ... hope this helps you out repost if you have anymore questions...
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If you are talking about the indoor fan on the unit and it is a electric heater then yes there is a fan relay that control the fan operation that is common to fail on these units.. it is fairly easy to replace and can be purchased on line at diiferent heating sites... type in goodman heating parts in a search engine and locate the relay you need... if you are talking about the outdoor fan motor then need to check a few things there is a capacitor that helps motor start that could be weak /by the way there is also a capacitor on the indoor unit you want to check to .... it usually is 5-20 microfarads that requires a meter or tester that can check the farads on capacitor... make sure these are good... the outside unit will sometimes not have the fan motor run if the unit is in a defrost cycle but should only stay of for 5-15 minutes at a time and only if it is in a defrost cycle ... hope this helps you out repost if you have anymore questions...