How do you change a blower motor relay?

How do you remove a blower motor relay?

How to Change the Blower Motor Relay

  1. Locate your vehicle’s blower motor relay. …
  2. Open the glove box and empty its contents.
  3. Locate the two tabs on each side of the open glove box and push them in. …
  4. Remove the relay motor’s door panel by removing the two screws that hold it in place with a screwdriver.

Where is blower motor relay located?

The blower relay is located near the front of the fuse block and is labeled “Blower.” Inspect the center of the relay. If the metal rod inside is broken, the relay will need to be replaced.

How do you test a blower motor relay?

Connect a test light or multimeter to the ground (black lead). Turn the ignition key to the on position (engine off), and remove the relay. Using the probe, test all terminal sockets in the relay connector. Two of the four should have power.

What happens when blower motor relay goes bad?

If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.

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What can cause a blower motor to stop working?

In a situation where the motor doesn’t work on any speed, the most likely causes are: a blown power supply fuse, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely.

Which fuse is for the blower motor?

Fuse Protection

To protect the blower motor power circuit, a 20-, 25- or 30-amp fuse is usually located in the fuse panel under the dash. The rating of the fuse will depend on the vehicle application and how much power the blower motor requires at full speed.

How much is a blower motor relay?

Blower Motor Relay Replacement Cost – RepairPal Estimate. Labor costs are estimated between $37 and $46 while parts are priced at $37. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.

Is there a fuse for the 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.

What does a blower motor relay?

In a blower motor, the relay supplies the power that allows the fans to circulate warmed air. Essentially an on/off switch, the blower motor relay’s reactions start and end the heating process in HVAC systems by controlling the flow of current between the power source and the motor.

Where is the fuse for the engine cooling fan?

The cooling fan relay is normally located in either the underhood fuse and relay center or mounted to the electric fan assembly behind the radiator.

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How do you check a blower motor fuse?

Disconnect car battery. Detach the blower motor from its connector. Unscrew all the screws on the blower motor. Place them in small container.

If the blower motor isn’t running you should:

  1. Use voltmeter or ohmmeter to check for a blown fuse. …
  2. Start car and see if blower motor works.

How do you test a blower switch?

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. If this circuit is open, showing infinity on the Ohmmeter, the blower resistor must be replaced.

How do I change a fan fuse?

How do I replace a fuse on my fan?

  1. Disconnect the fan from power.
  2. Remove the four screws to open the electronics cover.
  3. Gently twist and pull out the fuse holder and replace the fuse.
  4. Reinstall the fuse holder.
  5. Reattach the electronics cover.