Range Rover County LWB (LH) V8-4.2L (1993)
Blower Motor: Initial Inspection and Diagnostic Overview
1. If the Heater Blower Motor (M111) does not stop running with the Fan Speed Switch (X179) in Position 0, replace the Fan Speed Switch (X179).
2. If fresh air does not enter the vehicle cabin with the Air Supply Selector Switch (X180) in the Outside Air position, check the Heater Air
Recirculation Solenoid (K123) and linkage for sticking or binding.
3. If the blower motor(s) operate with the ignition key removed, replace the Heater And A/C Load Relay (K124).
4. If the blower motor(s) run but not at the speed indicated by the Fan Speed Switch (X179), replace the Fan Speed Switch.