Blower Motor Keeps Running When Car is Turned off

Last Updated on February 17, 2023 by Ryan

The blower motor is responsible for circulating air through the cabin of your vehicle. If the motor is stuck on, it will continue to run even after you turn the car off. This can be caused by a faulty switch or relay, a problem with the wiring, or a failing blower motor itself.

In some cases, the issue may be as simple as a loose wire or blown fuse. You’ll need to troubleshoot the problem to determine what is causing it and how to fix it.

If you’ve ever been driving and had your blower motor keep running even after you turn the car off, you know how frustrating it can be. Not only is it a waste of battery power, but it’s also annoying to have to keep listening to the motor running when all you want is silence. Thankfully, there are a few things you can do to fix this problem.

First, check to make sure that your blower motor resistor is working properly. This component controls the amount of power that flows to the blower motor, so if it’s faulty, it could be causing the motor to stay on even when the car is turned off. You can test the resistor by measuring its resistance with a multimeter; if it’s not within specifications, it needs to be replaced.

Another possibility is that there’s a short circuit somewhere in the blower motor circuit. To find out if this is the case, use a voltmeter to test for continuity between ground and the wire that supplies power to the blower motor (usually found at the fuse box). If there is continuity, then there’s a short circuit and you’ll need to trace back the wiring to find where it’s happening so you can repair or replace it.

Finally, if neither of these two issues seem to be causing your problem, then chances are good that your blower motor itself is faulty and will need to be replaced. While this isn’t necessarily an easy fix, it’s important to get it done so that your car’s heating and cooling system will work properly again.

Blower motor won't stop running when car is off

Why Does My Blower Motor Not Shut Off?

If your blower motor does not shut off, there are a few potential causes. One possibility is that the motor itself is defective and needs to be replaced. Another possibility is that there is an issue with the wiring, which could be a result of a loose connection or a short circuit.

If the problem is with the wiring, it will likely need to be repaired or replaced by a professional. Finally, if the problem is with the control panel or switch, you may be able to fix it yourself by replacing the component.

Why Does My Blower Motor Stay On?

There are a few reasons why your blower motor may stay on even when you’ve turned off your car. One possibility is that the blower motor resistor has failed. This part regulates the voltage going to the blower motor, so if it fails, the voltage stays high and the motor keeps running.

Another possibility is that there’s a problem with the climate control system itself, which could be caused by a faulty fuse, relay or controller. If you’re not sure what’s causing the problem, it’s best to take your car to a mechanic for diagnosis and repair.

How Do I Reset My Blower Motor?

If your blower motor is not working, there are a few things you can do to reset it. First, check the power supply to the motor. If the power is off, turn it on and see if the motor starts.

If the power is on and the motor still does not work, try resetting the circuit breaker or replacing the fuse. If neither of these solutions works, you may need to replace the blower motor itself.

Can a Car Blower Motor Cause a Fire?

A car blower motor can cause a fire if it overheats. The most common cause of this is if the blower motor is left on for too long or if it is set to a high speed setting. If the blower motor overheats, it can start a fire in the car’s engine compartment.

To prevent this from happening, make sure to turn off the blower motor when you are not using it and do not leave it on for extended periods of time.

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Mercedes Blower Motor Stays on With Ignition off

If you own a Mercedes-Benz, you may have experienced the blower motor staying on after you turn the ignition off. This can be a frustrating problem, especially if you’re trying to conserve battery power. Here’s what you need to know about this issue.

First, it’s important to understand that the blower motor is controlled by a relay. When you turn the ignition off, the relay should also turn off. However, in some cases the relay may become stuck in the “on” position.

This can cause the blower motor to stay on even when the ignition is turned off. If your blower motor is staying on after you turn off the ignition, there are a few things you can try to fix the problem. First, check the fuse for the blower motor circuit.

If it’s blown, replace it with a new one and see if that fixes the problem. If not, there may be an issue with the relay itself.

Ac Fan Still Running When Car is off

If your car’s AC fan is still running even when the car is turned off, there could be a few different reasons why. One possibility is that the fan switch has become stuck in the “on” position. Another possibility is that a wire or fuse has become loose, causing the fan to continue running even when the car is turned off.

If you’re not sure what the problem is, it’s best to take your car to a mechanic and have them take a look.

Blower Motor Stays on High

If your blower motor stays on high, there are a few things you can check to see what the issue may be. First, check your fuse box to see if there is a blown fuse. If so, replace the fuse and see if that fixes the problem.

If not, then it’s possible that your blower motor resistor is faulty. The resistor controls the speed of the blower motor, so if it’s not working properly, the motor will stay on high. To test this, simply unplug the connector from the resistor and jump it with a wire.

If the blower motor starts working, then you know the resistor needs to be replaced.

Conclusion

If your car’s blower motor keeps running after you turn the car off, there are a few possible causes. It could be a problem with the switch that controls the blower, a wiring issue, or a problem with the blower motor itself. If your car is still under warranty, take it to the dealership for service.

If not, you can try troubleshooting the problem yourself. First, check the fuse for the blower motor and replace it if necessary. Next, clean any debris from around the switch that controls the blower.

If neither of these solutions solves the problem, you may need to replace the blower motor itself.