What causes the blower motor on a Sunfire to stop working?
Damage to the blower motor in a Sunfire most often happens from running it at its highest setting every time you turn on the heat or AC. The blower motor is very durable, but over time, it wears down and will either stop working altogether or produce very little blowing force when it’s turned on.
Where is the battery on a Nissan Sunfire?
On the Sunfire, it mounts under the dashboard on the passenger side of the car. Open the driver’s side door on the Sunfire and pull the hood release lever. Raise the hood and locate the engine’s battery. Identify the negative battery post by looking for a small minus (-) symbol on top of the battery’s case.
Where is the negative battery post on a SunFire?
Open the driver’s side door on the Sunfire and pull the hood release lever. Raise the hood and locate the engine’s battery. Identify the negative battery post by looking for a small minus (-) symbol on top of the battery’s case. Loosen and remove the cable connected to the negative post on the battery with a socket wrench.
Damage to the blower motor in a Sunfire most often happens from running it at its highest setting every time you turn on the heat or AC. The blower motor is very durable, but over time, it wears down and will either stop working altogether or produce very little blowing force when it’s turned on.
On the Sunfire, it mounts under the dashboard on the passenger side of the car. Open the driver’s side door on the Sunfire and pull the hood release lever. Raise the hood and locate the engine’s battery. Identify the negative battery post by looking for a small minus (-) symbol on top of the battery’s case.
Open the driver’s side door on the Sunfire and pull the hood release lever. Raise the hood and locate the engine’s battery. Identify the negative battery post by looking for a small minus (-) symbol on top of the battery’s case. Loosen and remove the cable connected to the negative post on the battery with a socket wrench.
How does a 3 speed blower motor work?
Older style blower motor resistor with exposed resistor elements. The blower motor resistor is what’s responsible for giving you three blower speeds. The resistor block contains three different high resistance coils. Think of these coils like a filament in a light bulb.
What to do if your blower motor only works on high speed?
If your blower only operates on its highest speed, chances are you have the series type of blower motor resistor. This is the most common failure mode. To repair the problem, simply replace the resistor block. It’s usually located in the ductwork (to keep the coils cool) below the glove box.
What happens when the resistor on a blower motor burns out?
The resistor block contains three different high resistance coils. Think of these coils like a filament in a light bulb. The coil resistance causes them to heat up, thereby reducing the amount of voltage that can flow to the blower motor. When a resistor coil burns out, you lose that fan speed.
Older style blower motor resistor with exposed resistor elements. The blower motor resistor is what’s responsible for giving you three blower speeds. The resistor block contains three different high resistance coils. Think of these coils like a filament in a light bulb.
Why does my blower only work on high speed?
If your blower only operates on its highest speed, chances are you have the series type of blower motor resistor. This is the most common failure mode. To repair the problem, simply replace the resistor block.
Where is the blower control switch on the dashboard?
The blower control switch on the dashboard controls the circuit flow of the blower motor to adjust the voltage from low, to medium, to medium-high, to high. When on high, the circuit bypasses the blower resistor.