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To determine if a resistor is defective, you can measure its resistance using a multimeter. If the measured resistance significantly deviates from the resistor's specified value (indicated by its color code), it may be faulty. Additionally, visual inspection for physical damage, such as burns or cracks, can also indicate a defective resistor. If the resistor is part of a circuit and the circuit is not functioning properly, it may be worth testing the resistor as a potential cause.
What else can I help you with?
Fiesta heater not blowing?
Blown fuse, defective blower motor, or defective blower motor resistor pack.
Fan won't turn on for the heater?
Blown fuse, defective fan control switch, defective blower motor resistor pack, or defective blower motor.
When the heater is on you feel heat but will not blow?
Defective blower motor, blown fuse, or a defective Blower Motor Resistor Pack.
Heater blower will not come on in a Kia Sportage?
Blown fuse, defective blower motor, or defective blower motor resistor pack.
Why did the blower motor on an 04 Honda accord stop working?
Blown fuse, defective blower motor, or defective resistor pack.
Why did your heater in your van stop blowing?
Blown fuse, defective Blower Motor Resistor Pack, Defective Blower Motor, or Defective Blower Motor speed control switch.
How is the heater resistor in a 2002 mercury villager repaired?
If it is defective it will need to be replaced.
How do you fix the blower fan on a 1994 Chevrolet Suburban?
You either have a blown fuse, defective blower motor, defective blower motor switch, or a defective blower motor resistor pack.
What causes the Heater fan not to work on 1991 dodge ram?
Blown fuse, defective blower motor, defective wiring, defective blower motor resistor pack, or in rare instances a defective blower motor speed control.
AC only works when the blower is in the max position what is wrong?
Defective resistor pack.
4 percent of its resistors are defective make to deliver 5000 resistor?
Make 5,209 of them.
Why does heat blow when on hi but not when in low modes. Checked the HVAC ctrl fuse already.?
Defective heater resistor pack. Defective blower motor resistor, check out this site http://www.oqcgp.com/forum/kb.php?mode=article&k=70
