Tops Signs That Your BMW Blower Motor Resistor Needs Replacement from Certified Mechanics in Nashville

The blower motor resistor is an intricate part of BMW’s heating and cooling system that helps in the proper dispersal of air inside the cabin of your high-end car. However, like all other mechanical parts of your luxury car, the blower motor resistor also faces a fair share of issues affecting its functioning.

There are several signs associated with a malfunctioning blower motor resistor in your BMW that you mustn’t ignore. Here we will discuss the signs associated with blower motor resistor failure as shared with us by the certified mechanics in Nashville, TN.

Fan Works at Single Speed

One of the most common symptoms associated with a malfunctioning blower motor resistor in your vehicle is when you observe that your blower motor resistor works at only certain speeds or only at a single speed. When the blower motor resistor functions optimally, you will find that it operates at all speeds according to the cabin temperature of your vehicle.

However, while operating the blower motor resistor of your car if you find that the motor fails to operate at all the speeds of your air conditioning of the car, then there is something wrong with the blower motor resistor. Most of the time this problem is caused due to a faulty blower motor resistor in your BMW.

Now, diagnosing the problems with the blower motor resistor is a very complex process and you won’t be able to detect the actual problem by following the DIY videos on the internet. That is why you must rope in a BMW specialist who can use advanced tools & equipment to diagnose the problem & take remedial measures.

Inadequate Airflow

The airflow from the vents of your high-end car should be adequate enough to make your driving very comfortable. Nonetheless, with a failing blower motor resistor in your vehicle, you will find that the airflow from the vents of your AC is irregular or inadequate.

At times, it is seen that due to years of functioning the blower motor resistor suffers wear and tear which affects its functioning adversely. The blower motor resistor helps in pushing the air from the HVAC system but when it fails, it hampers the pushing of the air by the blower motor.

The fans of your air conditioning system will function for some time and then you will find that the fan will stop working completely altogether. Moreover, this is also going to affect the other parts of your car like the defroster as it uses the fan to blow air at the windshield of your vehicle.

Unusual Sounds

When you are driving a high-end car like BMW there are seldom any occasions when you are going to hear any unusual sounds coming from the vehicle other than the roar of the engine as you press the gas pedal. However, when you are driving with a bad blower motor resistor, then you are going to hear unusual sounds coming from the AC system of your car.

The blades of your car are made up of plastic and when the blower motor resistor problem goes unaddressed for a long time it eventually affects the functioning of the fans and this is when you get to hear unusual sounds coming from your car.

Most likely you are going to hear slapping or popping sounds coming from the air conditioning system of your car. In addition to this, you will observe that when you are increasing the speed of the fan, you get to hear a whirring noise coming from your AC system indicating failure of the blower motor resistor.

Malfunctioning AC

During the initial stages of the problem, you will find that you still get cool or warm air as per your choice when you operate the air conditioning system of your car. However, as the problem with the functioning of the blower motor resistor progresses, the air conditioning system starts to behave weirdly.

At first, the intensity of airflow from your vents is going to decrease and then eventually the air conditioning system stops working altogether. While there are several factors that can cause the malfunctioning of the AC system, the failing blower motor resistor comes at the top of the list.

Finally

The above-discussed factors are some of the major signs associated with a malfunctioning blower motor resistor in your BMW. Whenever you come across any of these signs in your BMW, you must immediately get in touch with a qualified mechanic who can diagnose the blower motor and replace it with a new one.