Where is the fuse on a blower motor?
Locate the fuse for the blower motor in the owners/service manual. Test the fuse, with the ignition key on, using the 12-volt test light.
When do you need to replace the blower motor relay?
If the blower motor does not function, car fuses are blown, or relays are melting, you may have to replace the car blower motor relay. 1. Blower motor does not function 2. Blown fuses 3. Melted relay The blower motor relay is the electrical switch that is used to supply the power for the vehicle’s blower motor.
What are the signs of a broken blower motor switch?
Some common signs of a broken blower motor switch are if the switch only works on certain air settings, which occurs when a contact wears out, or if the switch is stuck or often gets stuck, indicating that the switch is not working properly.
How to replace a heater blower motor switch?
Remove the nut that holds the switch to the dashboard with the appropriate sized deep well socket. You should be able to push the switch toward the inside of the dashboard and get it out where you can handle it. Step 4: Access the switch. Accessing the switch from behind can be very tricky. The older your car is, the easier this job will be.
What happens when you change the fuse on a blower?
If the blower works when you change the fuse, you may not be out of the woods yet. When the motor gets old and tired it will draw more current through the wires than a new motor.
Where is the fuse block on a GMC Sierra?
The fuse block access door is on the driver’s side edge of the instrument panel. Pull off the cover to access the fuse block. Instrument Cluster, DRL Relay, Lamp Switch, Keyless Entry, Low Coolant Module, Illuminated Entry Module, DRAC (Diesel Engine)
If the blower motor does not function, car fuses are blown, or relays are melting, you may have to replace the car blower motor relay. 1. Blower motor does not function 2. Blown fuses 3. Melted relay The blower motor relay is the electrical switch that is used to supply the power for the vehicle’s blower motor.
Some common signs of a broken blower motor switch are if the switch only works on certain air settings, which occurs when a contact wears out, or if the switch is stuck or often gets stuck, indicating that the switch is not working properly.
the blower motor fuse is inside the car on the driver side lower dash. There is a little panel you can remove. This circuit takes 2 15 amp fuses, i learned my lesson when i blew both and only replaced one, and wondered why i kept blowing that fuse. The fuses will be listed on that little panel you take off.
What are the fuses on a Nissan club blower?
There is a little panel you can remove. This circuit takes 2 15 amp fuses, i learned my lesson when i blew both and only replaced one, and wondered why i kept blowing that fuse. The fuses will be listed on that little panel you take off.
Why does my breaker box blow a fuse?
The electrical system will then trip or blow a fuse to protect itself. Loose Electrical Connections. The connections inside your breaker box can come loose due to temperature changes.
How does the Auto AC affect the blower motor?
In short, the blower motor is mounted in series with the fan control amp. The auto AC regulates the fan control amp, which regulates the voltage to the blower motor. A low speed setting causes a lower voltage across the blower motor, which makes the motor operate slower.
Locate the fuse for the blower motor in the owners/service manual. Test the fuse, with the ignition key on, using the 12-volt test light.
What should I do if my blower motor stops?
Replace blower motor. If you have a variable speed blower motor, replace the blower motor speed control module. If you have a three or four speed blower motor, remove the blower motor relay. If the motor stops, replace the relay. Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period.
What causes a blower motor to overheat?
Decreased airflow causes the blower motor resistor to overheat and fail. Reduced airflow also causes the blower motor to work harder, draw more current and that can cause repeat blower motor resistor failures. Blower motor is drawing too much power. Check the cabin air filter for clogging.
How can I tell if my blower speed switch is faulty?
Test for power at all the blower speeds by moving the blower speed switch through all positions. A faulty resistor loses power at different positions on the switch. High blower speed has direct power to the motor from the switch. If there is no power indicated on high blower speed, the problem is most likely the switch or the fuse.