The heater blower motor may only work on the high speed setting. Our technicians recommend replacing the heater blower motor and fan control amplifier to address this problem.Google+
Car Problem Reports
Infiniti QX4 The Heater Blower Motor May Only Work on the High Speed Setting
Infiniti QX4 Problem
Visitor, 2002 Infiniti QX4, 247,756 mi
Just in the past couple days my heater fan not working at all it didn't work one day the next day it did & now its not working
at all ..... I'm assuming it needs to be replaced.....