How much is a fan resistor?

The average cost for a blower motor resistor replacement is between $83 and $150. Labor costs are estimated between $35 and $78 while parts are priced between $48 and $72. Estimate does not include taxes and fees.
A.

What does the fan resistor do?

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. The change in resistance then limits the current through the motor, which dictates the speed at which the blower fan works.
  • How much is a new blower motor?

    This item is a bit more expensive to replace and when it goes bad, the life expectancy of your furnace is probably diminishing. It may be time to replace. Blower motor replacement can range from $150-$450; while a squirrel cage fan with motor is in a range of $250-$600.
  • What is the blower motor in a car?

    The heater blower motor forces air through the vents. You are able to control the speed of the motor through switches, buttons, and dials on the dashboard. The motor contains a resistor which allows it to change the speed of the fan.
  • Is a blower the same as a supercharger?

    We'll use the terms supercharger and blower interchangeably. The centrifugal supercharger is very similar to a turbocharger, except the centrifugal supercharger is driven by a belt off the engine, while the turbocharger is driven by the force of the exhaust gases.
B.

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.
  • Is the Ecoboost Mustang a twin turbo?

    The 2015 Ford Mustang arrives next year with three engine choices: a base 3.7-liter V6, a 420-horsepower V8 and the new 2.3-liter EcoBoost turbo, which Ford says will deliver 305 hp and at least 300 lb-ft torque. Its twin-scroll turbocharger is optimized for high output and efficiency and low emissions.
  • What is a variable geometry turbo?

    Variable-geometry turbochargers (VGTs), (also known as variable nozzle turbines/VNTs), are a family of turbochargers, usually designed to allow the effective aspect ratio (A:R) of the turbo to be altered as conditions change.
  • What is the role of a turbocharger?

    The turbocharger turbine, which consists of a turbine wheel and a turbine housing, converts the engine exhaust gas into mechanical energy to drive the compressor. The gas, which is restricted by the turbine's flow cross-sectional area, results in a pressure and temperature drop between the inlet and outlet.
C.

What are the symptoms of a faulty cooling fan switch?

Several symptoms may point to a bad or failing thermo coolant fan switch.
  • Engine overheating. Engines generate an enormous amount of heat and as a result are subjected to very large temperature swings if this switch does not operate effectively.
  • Check Engine Light comes on.
  • Broken or shorter signal wire.
  • Where is the coolant temperature sensor located?

    The Engine Coolant Temperature Sensor is located in the coolant pipe, below the air intake pipe and behind the right cylinder head and is integral with the ECT sensor. The Engine Coolant Temperature Sensor is located on the back of the right cylinder head and is integral with the ECT sensor.
  • What is the purpose of antifreeze in a car?

    As well as preventing water from freezing up, antifreeze raises the boiling point of engine coolant to prevent overheating. The stuff also protects your engine from corrosion, aids heat transfer, and prevents scale from building up internally.
  • What is a radiator fan switch?

    A coolant fan switch is a small and very simple switch comprised of typically two wires. Once the temperature reaches this cooling stage, the coolant fan will shut off. Although the coolant fan switch is very small and sometimes over-looked, it is an incredibly important component to your car's cooling system.

Updated: 3rd December 2019

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