Volvo Repair: volvo 940 wagon non turbo, volvo 940 wagon, volvo 940

Question
the heater blower motor(brand new,bench tested and works) will not work when hooked up in the car. what should I test next and how do I test them or replace them or what would be the process of elimanation.  thanks ted

Answer
Hi Ted,
         With a test light,check fuses...test wiring to motor...you must know if you have a good ground...next..test hot feed to motor...with test light...heater fan switches almost never fail...
                
                  Good night,

             Bilbo