☑ How To Test A Good Resistor

When your blower motor goes bad you will not get ac or heat to blow inside of your vehicle you will also not be able to defrost your windows. In this video i explain and test a bad blower motor resister.

How To Test Resistors 9 Steps With Pictures Wikihow

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Test the fuse with the ignition key on using the 12 volt test light.

How to test a good resistor. A bad resistor will either show infinite resistance or a measurement far higher than its rated resistance. How to test vehicle acheat blower motor. To check to see whether a resistor is good or not we need to only perform one test and this is to check the resistors resistance value using the ohmmeter of a multimeter.

Locate the fuse for the blower motor in the ownersservice manual. Turn the resistor so that this band is to your right. Attach the clip lead of the test light to a good ground like a bolt screwed into metal and touch the sharp probe end to the terminals on the fuse.

Prepare a digital multimeter dmm to measure the resistor. If you look at a resistor one end should have a gold silver or white band. Set your meter to an appropriate range.

Isolate the resistor from the circuit. How to test resistors steps remove power from the circuit containing the resistor. Determine the actual.

In either case the resistor is no longer functioning properly. A good resistor should test within its rated range. Next obtain an electrical meter capable of measuring resistance.

With a simple multi meter you can also test your blower motor to verify you blower motor proble. Test a resistor with an ohmmeter. You will next need to determine the rated value of the resistor.

Observe the reading on the display. Read the resistor value visually. Before you can test a resistor you need to know its strength and tolerance.

Testing a resistor with an ohmmeter is the best easiest and most effective way to tell whether a resistor is good or not. How to test a resistor. How to check a resistor steps in order to test a resistor it is important to first disconnect one lead from the circuit.