Blower heater fan works intermittently on Buick LeSabre Custom?

Fan working intermittently, this is known issues for m,any Auto heater controller system on Buick car models.
This vehicle has a blower control module which is like a small blower motor computer that controls the fan speeds from low to high when commanded by the push button unit on the dash.This control module can be common to fail and cause this type of fault here.
This blower control module is located under the hood next to the blower motor,if you follow the blower motor wiring it will lead to the blower control module.You can start the vehicle when the fan isn't working and tap on this control module with the handle of a screw driver or similar and if the fan operates then this control module needs replaced.

This details will help you to confirm the problem.You can get required parts from dealer or from Local parts sore.Also you can get heater control module tested at car garage or car repair center.Its tested by meter and testing.

Thanks.

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