Ford Quick Tips 68 Blower Motor Resistor Failures ођ In this video we go over testing blower motor resistors found in ford vehicles with manual climate control.i only recommend motorcraft blower motor resistors. The blower motor decided to stop working as of this morning. i replaced the fuse even though the visual inspection looked like it was fine. no luck. it's never even hinted that something was slowing it's performance. anyway, any suggestions? at a quick glance, it looks as though there are several connectors that plug into the blower housing.
How To Test A Ford Blower Motor Resistor Cookip 5. probe terminals 4 and 3 with your multimeter test leads to check the m2 speed circuit (see image 3 of 4 in the image viewer). your multimeter should register continuity. you'll probably see a resistance of about 0.6 ohms ( Ω). this test also test the continuity of the blower resistor thermal fuse. The blower motor resistor is responsible for controlling the speed of the blower motor in your car’s hvac system. it works by regulating the amount of electrical current that flows through the fan motor. the resistor does this by varying the resistance of the coil. the higher the resistance, the less current flows through the motor, which. On this ford f 150 the blower only worked on high even after i replaced the resistor. this is how i tested the blower resistor and switch. this will work on. Inspect the resistor visually. look for obvious signs of corrosion and burns from overheating. if you see signs of overheated connectors, replace the blower resistor and its connector, but again, you must splice the wires right, or you’ll have problems at the splice later on. if you want to do a quick test of the blower resistor, you can.
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