What do you need to test a blower motor?
If you are experiencing some of these signs, you need to… Test Your Blower Motor What is a multimeter? A volt-ohm meter or commonly known as a multimeter is a tester that measures electrical, current, voltage, resistance, and other values.
What are the symptoms of a worn out blower motor?
One of the symptoms of a worn out blower motor is that it can intermittently produce a loud screeching noise when running. How to test a blower motor? If the blower motor doesn’t work at all, the blower motor itself must be tested first. Typically it’s done by measuring the voltage at the blower motor connector when it’s turned on.
Where is the blower motor on a multimeter?
Testing the blower motor of your vehicle using a multimeter The blower motor in your car is usually located behind your vehicle’s glove compartment. Disconnecting the positive and negative power supply is the first thing to do. The black wire is normally negative.
Where is the blower motor located in a car?
The blower motor in your car is usually located behind your vehicle’s glove compartment. Disconnecting the positive and negative power supply is the first thing to do. The black wire is normally negative. With your multimeter (Ohm scale), you need to take the positive lead of the multimeter to test the negative black cable.
Is there a way to test a blower motor?
Blower Motor Resistor Testing Place one lead of the Ohmmeter on terminal 1 of the resistor. Place the other lead on terminal 2 and check against specifications. Move the lead from terminal 2 to terminal 3 and check this reading against specifications. Move the lead from terminal 3 to terminal 4 and check this reading against specifications.
What is the purpose of a blower motor resistor?
The blower motor resistor is an electrical component that is a part of the vehicle’s heating and air conditioning system. It is responsible for controlling the blower motor’s fan speed. A failed blower motor resistor can cause issues with the operation of the entire heating and air conditioning system.
What is the blower motor in a car?
The blower motor is the fan that pushes heated or cooled air through dashboard vents based on the climate system settings and the fan speed selected. Adjusting the fan speed sends a signal through a resistor to the blower motor to either pick up the pace or slow it down.
What does a blower motor resistor do?
Definition. A blower motor resistor, typically located beneath the passenger side dashboard, contains three resistors, or sets of terminals designed to generate voltage in proportion to electrical current. These resistors allow the blower motor to function at lower speeds.