Why does my blower motor keep running after I shut off the car?

Some customers may comment that the blower motor is inoperative or continues to run after the vehicle has been shut off. These conditions may be caused by a blower motor control module failure. This failure may occur when the vehicle is operated in ambient temperature conditions of -23 C (-10 F) or below.

Is there a way to turn off the blower motor?

My blower/heater motor switch will not turn off the blower nor willl it change the motor speed. It’s currently stick on high. Even if I turn the engine off and take out the keys the blower is still running. I had to discoinnect the battery to get it to stop.

What to do if your YouTube heater is stuck?

Heater Blower Stuck on after key is off…FIXED! – YouTube Heater Blower Stuck on after key is off…FIXED! If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

What are the downsides of a blower motor?

The downside of blower motor resistors is that, in order to reduce voltage, a resistor converts the energy into heat. These days cars can’t afford to waste that energy—there are simply too many electrical accessories to run.

Why does the blower motor keep running after I Turn Off the car?

Why does the blower motor keep running after I turn off the car? If your car uses a blower motor controller, it can keep running the blower motor after you shut down the engine. Those used to be installed only on vehicles with automatic climate control with variable speed fans, but now they’re installed on many late model vehicles.

Why does my Chevy Tahoe heater not shut off?

There’s not alot of room to work especially if you have big hands like me. Today is Sept 22 2014. CHEVY TAHOE 2005. HEATER BLOWER WON T STOP WHEN ENGINE SHUT OFF . WHEN ENGINE RUNNING NO CONTROL ON THE BLOWER SPEED .WORKED AT ABOUR 2/3 OF MAX SPEED . REPLACED MYSELF THE BLOWER RESISTOR .TOOK ME 2 HRS MAX .

What should I do if my blower won’t shut off?

Refer to either the Blower Motor Control Processor Replacement or Blower Motor Processor Replacement-Auxiliary procedures in SI. After replacement of the blower motor control module, the customer may notice a slightly higher than expected blower motor speed at any of the blower speed settings.

Some customers may comment that the blower motor is inoperative or continues to run after the vehicle has been shut off. These conditions may be caused by a blower motor control module failure.

Can a Silverado blower stay on with the key off?

The HVAC blower in this 2003 Silverado stays on speed 5 even with the key off. Here’s how to turn speed 5 of the blower off (while keeping speeds 1-4) and hopefully this will save you from replacing the battery. NOTE: GM issued a special coverage policy for this problem which covers the repair for 10 years or 150k miles, whichever comes first.

Where is the relay on a blower motor?

That relay should be in the under hood fuse/relay box (under hood, left side, behind battery). Starting with the high speed relay, pull it out and see if the fan turns off. Replace the one that causes the fan to go off when removed. I have attached images to help you.

Some customers may comment that the blower motor is inoperative or continues to run after the vehicle has been shut off. These conditions may be caused by a blower motor control module failure.

What causes a Chevy blower motor to overheat?

Either of the above may cause the relay resistor module or wiring connector to overheat, resulting in one or more of the following symptoms: In very rare events, if the above symptoms are ignored, a fire could occur.

What should I do if my blower wont shut off?

If the blower stops with either of these steps, the problem is in the HVAC control module. However, if the blower continues to run at high speed with either of those tests, replace the blower motor control processor. Just as an FYI, the retail price of the blower motor control processor is $280.34.

How long does a Chevy blower motor stay on?

In very rare events, if the above symptoms are ignored, a fire could occur. This special coverage covers the condition described above for a period of 10 years or 240,000 km, whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership.

When to replace the blower motor control module?

Replace the blower motor control module if the vehicle experienced a blower motor control module failure in extremely cold ambient temperature conditions. Technicians are to replace the blower motor control module also called the Linear Power Module (LPM) with the P/N listed below.

Where can I get a new blower motor?

Its kinda a dealer item but call pep boy’s or auto or major parts store to make sure you cant special order it. here is a pdf of replacement and testing and location as promised. Was this answer helpful?

Why does my ACC blower not turn on?

The ACC has a very common fault — the resister/ fan controller fails and the blower will run full blast and then not at all. The display stays on and works normally. The controller is mounted behind the glove box — I replaced mine in about 15min — you can get them online for around $100.00.. Change the cabin filter while you have it opened up.

Why does my Nissan Pathfinder blower turn itself off?

A forum for the legendary Nissan Pathfinder and Infiniti QX4. My blower/heating system has developed a little glitch where it turns itself on and off while blowing air at any speed setting.

What happens if you lose the blower motor relay?

The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air. The blower motor relay controls the current used to power the blower motor,…

What causes a fuse to blow on a blower motor?

If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.

Important: Replace the blower motor control module if the vehicle experienced a blower motor control module failure in extremely cold ambient temperature conditions. Technicians are to replace the blower motor control module, also called the Linear Power Module (LPM), with the P/N listed below.

Why does my GM car heater not shut off?

In some cases in cold weather the blower motor may not run, or if it does, it may not shut off when you turn off the vehicle. The TSB applies to the following vehicles with automatic temperature control: GM has identified the blower motor control module as the cause for the failure.