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I have what started out as a fan blower replacement need.On the roof The blower squeeked horribly so i replaced it.But now when it calls for heat, The fan only goes on, on (on) Auto doesnt kick the fan on. And the wires must be wrong because now i have the Condenser fan and the compressors' running.Can you help me on this one?
 

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this is a roof top pkg unit if i read this correctly ? copy of wiring diagram will deff help us out as working blind isnt a good idea ,, any chances of getting wiring diagram or model no. i can look on mfg site.. let us know
 

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sounds like low voltage issues.... not sure how that happened if you were just changing blower motor.... something is weird...:eek::eek: need to measure voltages at terminal strip..... :thumbsup: no use guessing we will be here a while..:(
 

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could be... if is calling for heat and the cooling is running my first stop would be the low voltage to see whats going on.... :)
 
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