How much does a blower motor resistor cost? To replace the blower motor resistor, it would cost you anywhere between $50 to$150 – this includes the cost of equipment and labor. However, by doing it yourself at home, you can save up to $70.
How do I know if I need a blower motor or a resistor?
Signs of a Bad Blower Motor Resistor Loss of HVAC fan control (total or certain speeds) The fan only works on its highest speed setting. No air coming from vents. Intermittent or inconsistent fan speed.
What happens when the blower motor resistor goes out?
If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. The heating and air conditioning systems may still function at one speed, however the resistor will have to be replaced in order for full functionality to be restored.
How much does a blower motor and resistor cost?
A blower motor resistor costs anywhere between $1 and $400. Factors that can affect its price include its condition, configuration, material, and set or kit inclusions. Labor may cost you an extra $45 to $55, depending on your area.
Should I replace blower motor and resistor?
We do suggest that you replace the resistor at the same time. It may not be critical, but this will keep the system more uniform. The issue may even be related to the resistor. If you know that it is not related to the issue, then you do not have to replace it.
How much does a blower motor and resistor cost?
A blower motor resistor costs anywhere between $1 and $400. Factors that can affect its price include its condition, configuration, material, and set or kit inclusions. Labor may cost you an extra $45 to $55, depending on your area.
How do I test a blower motor resistor?
Place one lead of the Ohmmeter on terminal 1 of the resistor. Place the other lead on terminal 2 and check against specifications. If this circuit is open, showing infinity on the Ohmmeter, the blower resistor must be replaced. Move the lead from terminal 2 to terminal 3 and check this reading against specifications.
How do you know if a resistor is bad?
A good resistor should test within its rated range. A bad resistor will either show infinite resistance or a measurement far higher than its rated resistance. In either case the resistor is no longer functioning properly.
How much does it cost to fix blower in car?
The price to fix a blower motor at a shop ranges from about $150 to $300 and as high as $450 with certain vehicles. This is because the cost to fix anything at a shop has to take both parts and labor into account.
How much does it cost to fix a blower motor?
On average nationwide, a furnace blower motor replacement costs $400 to $600, including parts and labor. A single-speed blower motor costs around $450 to replace while a variable-speed motor costs $600 or more. You'll also need to budget labor, about $75 to $125 per hour.
How much does it cost to change a resistor?
How much does a blower motor resistor cost? To replace the blower motor resistor, it would cost you anywhere between $50 to$150 – this includes the cost of equipment and labor. However, by doing it yourself at home, you can save up to $70.
What causes blower motor failure?
Blower motor breakdown can be the result of anything from old age to failed bearings, high amp draw, electrical failure in the windings, dirt accumulation, and more. “The most common cause is dirt accumulation due to lack of maintenance,” said Tom Beaulieu, president of Bay Area Services Inc.
How do you test a resistor?
To test individual resistor values (outside a circuit), connect the multimeter probe wires to the resistor's two terminals—it doesn't matter which way round, as resistors are not directional components. Make sure the multimeter dial is in resistance measuring mode. Then check the value on the multimeter.
Is there a fuse for the heater blower?
Many vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood. The blower motor is usually under the dashboard on the passenger side.
How much does a blower motor and resistor cost?
A blower motor resistor costs anywhere between $1 and $400. Factors that can affect its price include its condition, configuration, material, and set or kit inclusions. Labor may cost you an extra $45 to $55, depending on your area.
Is there a fuse for the blower motor resistor?
A fuse is often located on the resistor board. The fuse only protects the low and medium blower speeds. High speed will still work if the resistor fuse is blown.
Where is the blower resistor located?
The heater blower motor resistor is often found beneath the dashboard. It is located in the heater and air conditioning compartment. It's connected to the air conditioning system, where it can adjust the speed of the blower motor fan. It can also be found behind the glove box of some vehicles.
What does blower motor resistor do?
Blower resistors are resistors which are used to control the fan speed of automotive blowers. The fan speed can be changed either by switching the blower resistor resistance mechanically using a rotating lever, or electronically by the air conditioning system.
What causes resistors to fail?
A fixed composition resistor normally fails in an open configuration when overheated or overly stressed due to shock or vibration. Excessive humidity may cause an increase in resistance. A variable composition resistor may wear after extensive use, and worn away particles may cause high resistance short circuits.
What happens when a resistor fails?
When a resistor breaks down, current typically flows through the burnt resistor without any resistance and thereby passes unchecked. Other components in the circuit may become damaged from the excess current flowing through.
How do I know if a resistor is burnt?
Connect resistor to multimeter and measure voltage drop across the burnt resistor. Now measure the current flowing into the resistor. Multiply both values and you will get the wattage of Resistor (As P = VI i.e. Ohm's law). This wattage must be less than the wattage of the resistor being replaced.
Can you drive with a bad blower motor?
Should you drive with a bad heater blower motor? A bad heater blower motor will not affect the safety of your car, with the possible exception of you not being able to clear the windshield of snow, ice, or condensation if the defrosters don't work.
Can I run my car without a blower motor?
Your car's blower motor is not only necessary for the operation of your air conditioner. Without a functioning blower motor your engine runs the risk of overheating.
How long does it take to replace a blower motor?
How long does it take to replace a blower motor? Replacing a blower motor takes 2 to 3 hours on average. The blower motor is typically located behind a control board and other furnace parts.
Where is a blower motor located?
The blower motor is usually under the dashboard on the passenger side. Blower motors that make loud squeaks or rattling noises may be worn out and on the verge of packing it in, but sometimes those noises are caused by leaves or other debris that can be cleaned out after the motor is removed from the vehicle.
How often do blower motors go out?
How much does it cost to replace blower motor resistor?
In general, you can expect to pay between $50 and $200 for the labor associated with blower motor resistor replacement, giving you a grand total of between $60 and $260 for parts and labor. How long should a blower motor resistor last?
What does the blower motor resistor do on a car?
The more power supplied, the higher the fan speed and the stronger the airflow. The blower motor resistor is a single part, often with several possible pathways for current flow that provide more or less resistance, depending on the demand from the dash setting. When it fails — usually due to corrosion or overheating — you may notice a few things:
How does a blower resistor slow down a fan?
When the power has to go through a higher resistance, it will reduce the voltage going to the blower motor; slowing the blower fan down. The newer style of blower resistor uses electronics to send small pulses to the blower motor and based on how frequent the pulses are can speed up and slow down the blower fan.
Why are blower motors so expensive?
Blower motors can be fairly cheap if they are a manual resistor block style. However, the newer computer-controlled resistors can be fairly expensive since they contain sensitive electronics.
Below you will find two interesting articles on a similar topic 👇
Why is my heat blowing cold air in my car?What is a blower motor on a car?
