Table of Contents
Where is the blower motor switch located?
It’s located inside the dash, often on the opposite side of the steering wheel or inside the engine compartment on the firewall. A blower motor resistor or a blower motor control module is the part that controls the speed of the blower motor.
Will a car run 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. Start car and see if blower motor works.
Where is the heater 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 I know if my blower motor switch is bad?
Symptoms of a bad heater blower motor resistor
- Fan does not work at all, so no air comes out of the vents.
- Fan only works on some speeds and not others.
- Fan only works on the highest speed.
- Fan runs all the time and can’t be controlled with the fan switch.
- You see smoke coming out of the vents.
How do you change a blower switch?
How to Replace a Blower Motor Resistor
- Step 1: Remove the glove box door, if necessary.
- Step 2: Disconnect the wiring harness and remove screws.
- Step 3: Remove and replace the blower motor resistor.
- Step 4: Tighten screws and reattach wiring harness.
- Step 5: Reinstall the glove box door.
Can you drive a car with bad 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. But you won’t be comfortable inside your car, especially during the cold of winter and the heat of summer.
Where is the blower fuse?
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 fuse controls the heater fan?
Locate the blower motor fuse, likely a 30 or 40 amp, it may be marked on the fuse box cover or in the driver’s manual. What is this? Use a test light or voltmeter to check for power at the blower motor fuse with ignition and blower motor on.
How do you test a blower motor switch?
Test the switch. Plug the connector back in to the blower motor, and then trace the wire harness back to the connector closest to the blower motor switch, usually located under the dash. Disconnect the connector and set the multimeter to ohms.
How do I reset my blower motor?
How to Find and Reset your Furnace Motor Blower
- Step 1: Turn off the power to the furnace.
- Step 2: Remove the blower compartment cover.
- Step 3: Make sure the blower is completely cooled off.
- Step 4: Locate the reset button.
- Step 5: Press the button in (assuming that this is your issue and that the button has popped).
Why does my car fan only work on high?
Most car manufacturers use a series of resistors to make the heater blower motor run at different speeds. And when one or more of these resistors burn out, you’re usually left with only one heater blower motor speed—high. The resistor module is easy and inexpensive to replace.