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.
Is there a fuse for blower motor?
The blower motor is powered by a fuse-like device called a relay. If your heater or air conditioner does not blow air through the vents, this could indicate that the blower motor fuse has probably blown. While replacement is easy, the exact location of your blower motor fuse may vary from vehicle to vehicle.
Where is the fuse for the blower?
Under the instrument panel, look under the glove box. On the right side of the fender wall you will find another fuse box.
How can you tell if a blower fuse is blown?
Remove the fuse from its holder. In some cases you may need a small screwdriver to unscrew the fuse holder cap. Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.
What relay controls the blower motor?
The blower motor relay is the electrical switch that is used to supply the power for the vehicle’s blower motor. The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems.
How do you check a blower motor fuse?
Use voltmeter or ohmmeter to check for a blown fuse. If you find one, replace it. Start car and see if blower motor works. If fuse blows again, check for loose circuits.
Why does the blower motor stopped 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. … Start by checking the blower fuse and HVAC controller fuse.
What are the signs of a bad blower motor relay?
Blower motor relays tend to wear out over time from the stress of constantly flicking back-and-forth. These signs indicate a possible issue with the blower motor relay. When the blower motor does not respond at all, it may not be due to mechanical failure within the motor itself.
What are the signs of a bad blower motor?
5 Signs Your Blower Motor Needs to Be Replaced
- Weak Airflow from the Vents. This is usually the first indication that you may have a faulty blower motor. …
- No Airflow at All. …
- Unusually High Energy Bills. …
- Strange Sounds. …
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.
Can a blower motor be repaired?
Blower Motor Replacement: When Good Parts Go Bad. … There are a number of things that can go wrong with your heating system, but if the air stops blowing altogether and the same is true on cold air settings, a blower motor replacement is likely in order. The good news is that it’s a fairly straight forward repair.
What happens when a blower motor resistor goes bad?
If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. The heating and air conditioning systems may still function at one speed, however the resistor will have to be replaced in order for full functionality to be restored.