What can cause a blower motor to stop working?

Blower motors are designed to circulate air, so they won’t work if there’s no air to move. You should always check the filters and vents surrounding the blower to make sure that the blower isn’t having a hard time working. Look into your air filter’s housing and check the markings on your filter.

What would cause my heater blower to stop working?

In short, a dirty blower can cause the heat exchanger to fail. Dirty air filters could also be the reason your heater stopped working. Such filters restrict the airflow and could even worsen existing issues with wrong duct sizing. That’s why it’s paramount to replace filters every three months or so.

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Is there a fuse that controls the blower motor?

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 can cause a blower motor to stop working? – Related Questions

Where is the blower motor reset button?

It is usually located inside the blower compartment on the side of the blower motor. Be cautious as the housing may be hot. If the button is popped up, press it down.

How do I reset my blower motor?

How to Find and Reset your Furnace Motor Blower
  1. Step 1: Turn off the power to the furnace.
  2. Step 2: Remove the blower compartment cover.
  3. Step 3: Make sure the blower is completely cooled off.
  4. Step 4: Locate the reset button.
  5. Step 5: Press the button in (assuming that this is your issue and that the button has popped).

How do I know if my blower motor fuse is blown?

If the blower motor isn’t running you should:
  1. Use voltmeter or ohmmeter to check for a blown fuse. If you find one, replace it.
  2. Start car and see if blower motor works.
  3. If the circuits are in good repair but the blower motor keeps blowing fuses, replace the blower motor [source: You Fix Cars].

Where is the fuse for the blower motor?

Where is the blower motor fuse relay?

How do you know if a fan relay is stuck?

How Do You Know If Your Relay Is Stuck And Needs To Be Fixed?
  1. The air conditioner doesn’t turn on when you try to use it.
  2. The air conditioner turns off unexpectedly.
  3. You hear a clicking noise coming from the air conditioner.
  4. Visible damage or debris on the relay.

How do I 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.

How do you diagnose a blower motor failure?

What Are Signs Your Blower Motor Needs to Be Replaced?
  1. Poor or Airflow from Air Vents. This will be the first and most obvious sign your blower motor has a problem.
  2. No Airflow At All From Vents.
  3. Skyrocketing Energy Bills.
  4. Strange Noises When You Turn on the Heat.
  5. Overheating Blower / Weird Smells.

How do I know if I need a blower motor or a resistor?

Signs of a Bad Blower Motor Resistor

Here are some common signs that your vehicle’s blower motor resistor is bad: Loss of HVAC fan control (total or certain speeds) The fan only works on its highest speed setting. No air coming from vents.

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