If you have ever been in a situation where your car’s AC only work on high setting and it’s still not cold enough, you’re not alone. In fact, this problem is so common that there is a name for it: “AC creep.” But what causes this issue and how can you fix it? Keep reading to find out.
Why Car AC Only Work On High Setting
When your air conditioner’s blower motor starts acting up, it could be because of a problem with its resistor. The component helps control how fast the fan rotates and can easily overheat or corrode when not cared for properly which will cause them to fail in their task – slowing down output speed on high settings only!
What Is Blower Resistor?
The blower resistor is a component of the AC system that regulates the speed of the blower motor. This part can fail, causing the AC to only work on high setting. To test if this is the problem, you can use a multimeter to test the resistance of the blower motor. If it is out of range, then the blower resistor is most likely the issue.
How Do You Know If Your Blower Motor Is Bad?
There are a few signs that will indicate if your blower motor is going bad.
Weak Airflow
You can tell your blower motor is bad when it starts causing weak airflow. This usually happens because the car’s AC system has been worn out by time and use, which leaves less power for cooling purposes in order to avoid overheating parts like condenser coils or evaporators inside homes refrigerators; these would overheat without proper ventilation (and vice versa).
Unusual Noises
If you’re hearing a noise like slapping or popping coming from your vent, it could be an issue with the fan. The plastic blades on these fans are easily damaged and sometimes break off when they get caught in something – such as dog hair! It’s important to take care of this problem sooner rather than later because if left untreated long enough Niche will cause more serious damage including blade loss which leads directly back into not cooling properly at all times during summer months where air conditioning units normally run 24/7..
Smoke Or Unpleasant Smells
If you notice any strange smells or smoke coming from your car while driving, it is best to stop immediately. A burned-out blower motor can cause major damage and may not be the only problem with instrument panel lights going on by themselves! Make sure that everything looks correct before continuing onward so as avoid future issues.

How Do You Fix An Air Conditioner That Only Works On High?
The best way to fix an air conditioner that only works on high is to replace the blower motor resistor. This can be done by a qualified mechanic, but if you are confident in your abilities, it is possible to do it yourself.
1. Locate the blower motor resistor. This is usually located near the blower motor or in the engine compartment.
2. Disconnect the wiring harness from the resistor.
3. Remove the mounting screws and bolts that hold the resistor in place.
4. Install the new blower motor resistor in the reverse order of removal.
5. Reconnect the wiring harness to the new resistor.
6. Test the AC to make sure it is working properly.
If you are having trouble finding the blower motor resistor, consult your car’s owner’s manual or a repair manual for your specific vehicle.
Why Does My Air Conditioning Run at Only One Speed?
There are a few reasons why your air conditioning might be running at only one speed. One possibility is that the blower motor resistor is failing or has failed. Another possibility is that the blower motor itself is failing. If the blower motor is failing, it will need to be replaced.
Another possibility is that there is a problem with the AC system itself. If the AC system is not working properly, it will need to be repaired or replaced.
If you are having trouble troubleshooting the problem, consult a qualified mechanic or repair shop.
Why Is My AC Not Blowing Strong In My Car?
There are a few possible reasons why your AC is not blowing strong in your car.
If you are having trouble troubleshooting the
Growth Of Mold And Mildew
Moisture in your air conditioner is the perfect environment for mold and mildew. This affects airflow by clogging up fins at heat exchangers that are behind dashboard, which can lead to bad odors inside car cabin–endangering passenger’s health!
Loose Sealants Or Gaskets
Over time, sealants and gaskets can degrade and become loose. This will cause coolant to leak out, which will reduce the efficiency of your AC unit. Additionally, it can create an unpleasant smell inside your car.
Clogged Cabin Filters
If your cabin filters are clogged, it will restrict airflow and make it difficult for your AC to blow strong. Additionally, it can cause the AC to overwork and reduce its lifespan.
Cabin filters should be replaced every 12 months or 12,000 miles, whichever comes first.

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Frequently Asked Questions
How Much Does a Blower Motor Resistor Cost?
A blower motor resistor typically costs between $10 and $30.
How Much Does a Blower Motor Cost?
A blower motor typically costs between $100 and $200.
How Do I Reset My ACControl?
To reset your AC control, press and hold the “Off” button for 3 seconds.
What Is the Difference Between an AC Compressor and a Blower Motor?
An AC compressor is responsible for circulating refrigerant through the AC system. A blower motor is responsible for blowing air through the vents.
Can I Upgrade My Blower Motor?
Yes, you can upgrade your blower motor. However, it is not necessary unless you are looking for increased performance or you are having issues with your current blower motor.
My Car’s AC Blows Fuses, What Should I Do?
If your car’s AC blows fuses, you should take it to a qualified mechanic or repair shop. They will be able to diagnose and fix the problem.
How Often Should I Replace My Cabin Filter?
Cabin filters should be replaced every 12 months or 12,000 miles, whichever comes first.
Conclusion
AC compressor is working harder to cool the air on a high setting, so it’s using more gasoline. There are ways to combat this issue and still have your car AC blowing cold air without having to use the highest setting all of the time. If you’re experiencing this problem, read on for some tips that can help. Answer The Question hopes this article has helped you understand the basics of how your car’s AC works and why it doesn’t always blow cold air on low.