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.
How do I know if my blower motor fuse is bad?
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.
What fuse is for the blower motor?
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.
Where is the blower motor relay fuse 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.
What can cause a blower motor to stop working?
In most cases, a blower motor resistor fails due to corrosion or overheating. Sometimes, the mechanical resistance to the motor rotation causes an excessive electric current that can overheat and prematurely damage the blower motor resistor.
Locate the reset button on the furnace and press it to reset the furnace. 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.
What happens when blower motor goes bad?
Overheating is One of the Symptoms of a Bad Blower Motor in HVAC. If the HVAC system starts to overheat, you will smell something burning. Some systems will shut down right away when this happens.
Can a blown fuse cause heater not to work?
A blown fuse is a symptom not a cause. … Always use a replacement fuse with the same amp rating as the original. If a new fuse blows as soon as the blower is turned on, the heater circuit or motor may have a short that should be investigated.
Where is the fan fuse?
If you don’t see one that says fan or cooling fan, you will need to find the cabin fuse box. This is located in different places, again dependent on the manufacturer and model. Some times it is located behind the glove compartment, sometimes on the lower, left end of the dash board.
How do I change a fan fuse?
How do I replace a fuse on my fan?
- Disconnect the fan from power.
- Remove the four screws to open the electronics cover.
- Gently twist and pull out the fuse holder and replace the fuse.
- Reinstall the fuse holder.
- Reattach the electronics cover.
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 is my furnace not blowing air?
Your filter could be so saturated with dust and debris. … Every modern furnace is equipped with a safety shutoff that will be tripped if your furnace gets too hot, and a clogged air filter can cause your furnace to overheat, shut itself off and give you the illusion of a furnace not blowing air.