Question about Cars & Trucks
You need a blower resistor and now a possible blower motor. # 4 is straight 12 volt power even when resistor is bad it works that's why I think you need both
Posted on Mar 30, 2015
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Posted on Jan 02, 2017
SOURCE: freelander heater switch 1997
the fan works at different speeds by switching to a different resister for the given speed. A common fault is the resister pack has a thermal overload/cutout which over time corrosion sets in and it breaks down. When you find the pack [normally under bonnet and in the motor cowling ]although not necessarily, you will see agroup of wires 4/5 remove the pack locate the thermal cutout ,bridge it and test ,if the fan works on all speeds #replace the unit# , we don't want a fire do we??. the information that i have supplied is for general electrical principles , and unless your freelander has computor controlled heating the principles will be the same. if it is computor controlled it could get expensive .Good luck i hope that i have helped in some way. Pat.
Posted on Nov 15, 2008
You'll need to check the voltage coming out of the switch. If it proves to be okay than you'll have to replace the resistor block in the heater box, this is a small rectangular black plastic plate with four wires connecting to it. It should be located under the hood on the passenger side firewall. Remove the two 5/16ths retaing screws and remove the block. To replace reverse the order given here. Thank you, Dana
Posted on Nov 15, 2009
Testimonial: "thank you very helpful info "
SOURCE: i own a 2005 jeep
The lower speeds are accomplished by running the power supply through various resistors that drop the voltage which makes the blower turn at different speeds. The lowest setting uses all the resistors to drop the voltage as much as possible to turn the blower as slow as possible. High speed uses no resistors so the blower gets full power and turns as fast as possible.
Since speed 1 and speed 2 use the speed 3 resistor to drop there voltage and speed three is not working as well my guess is the speed three resistor is burnt out in the device referred to as the blower motor resistor or blower motor speed control module. This is located near the blower motor and is held in place with 2 screws. There will be several wires and possibly two connectors plugged into it.
These are really common failures in many vehicles. The parts are usually available at your local auto parts store and they are typically not that expensive.
Hope that helped.
Posted on Oct 07, 2010
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