Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161209-3562-1g8akbsjs:136:3912)
    at m.mountComponent (/tmp/execjs20161209-3562-1g8akbsjs:47:15602)
    at /tmp/execjs20161209-3562-1g8akbsjs:49:31860
    at a.r.perform (/tmp/execjs20161209-3562-1g8akbsjs:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161209-3562-1g8akbsjs:49:31821)
    at r (/tmp/execjs20161209-3562-1g8akbsjs:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161209-3562-1g8akbsjs:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161209-3562-1g8akbsjs:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161209-3562-1g8akbsjs:173:8), <anonymous>:17:3)
    at /tmp/execjs20161209-3562-1g8akbsjs:173:8

Symptoms of a Bad or Failing AC Fan Control Module

Fan Control module

An A/C fan control module helps to control the blower that supplies air to the cabin of a vehicle, as well as the cooling fans. The module helps to make sure that the cool air that is produced within the A/C system of a car is blown into the cabin. The A/C fans that are mounted in near the radiator of the car are also controlled by this module.

Usually, you will have a variety of signs that the A/C fan control module is going out. If the cooling fans begin to run erratically, then you may have a problem with the control module. Letting this type of issue linger can lead to a number of issues that can cause damage to your car. Getting the A/C fan control module replaced can save you a lot of time and money.

1. Cooling fans running for a long time

The cooling fans under the hood of your car are designed to keep the components of the system at a lower temperature. Usually, these fans will come on when the system gets a bit too hot and the go off once the desired temperature is reached. If you notice that the cooling fans run for a very long time without shutting off, then the A/C fan control module may need to be replaced.

2. Cooling fans not running at all

If the cooling fans are not coming on at all, then this may also be a sign that the fan control module is damaged. Without the cooling fans running properly, you will be at risk of having the car overheat. Running a car hot for a long period of time can lead to other damages like a blown head gasket.

3. Weakened air flow

Since this relay works the blower motor as well, you may notice that the air flow in the cabin of the vehicle is significantly reduced. The module helps to regulate how hard the blower motor works when needed, which is why it will cease to work with this part. Having a weakened air flow can cause the cabin of the vehicle to become very warm. The only way to fix this issue is by getting the AC fan control module replaced.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...


Related questions

Q: Weird tapping sound when turning on heat or seat warmer.

It sounds like it could be the blower control module in the dash. It will be hard to get to and you should have a technician repair it.

Q: Engine coolant disappeared

The engine could have an internal coolant leak and the coolant is being consumed into the motor. This is is you do not see any leaks anywhere on the round or on the engine. I would recommend having a mechanic...

Q: Sounds like a small fan on engine when car off, not radiator fans.

Hi, thanks for writing in. The noise you are hearing is the emission control system performing a system test of the fuel tank vapor system. The system should run the test in less than ten minutes. If the battery cannot...