#Fan control for a blower motor in a car how to

Blocked air intake вЂ“ Vehicles have two areas where air enters the vehicle.

Similarly, the blower resistor works with the blower motor to control the level of how much air is produced to flow through the vents (low, medium, high) based on your preference. Blower motors that have malfunctioned due to wear or age will prevent air from coming through the vents.

Damage to the blower motor or blower resistor вЂ“ The blower motor is what pushes the air through the vents in the car, similar to a fan in your home.

Likewise, a bad relay can also be the culprit since the relay takes the small electrical current and uses it to regulate the larger current needed for ventilation.

A blown fuse or bad relay вЂ“ If the ventilation fuse blows there will be no power to the blower motor preventing air from blowing through the vents.

A knowledgeable technician will need to eliminate the possible causes by checking several components first. This issue isnвЂ™t as clear cut as hot air coming through the vents. Once added, the technician will run the air conditioning and using a blacklight, will be able to identify the leak to begin repairs and finally perform evacuation and recharge to once again blow cold air. Solution: An expert automotive technician will need to add a fluorescent leak tracer dye and refrigerant to the system. This is because refrigerant is meant to evaporate when exposed to the environment. Unlike an oil leak, unfortunately, refrigerant leaks are difficult to identify. A leak can occur at any time but most often due to a hole in a connection, hoses, compressor, condenser, or a ruptured evaporator. Without sufficient refrigerant, the other air conditioning components will be unable to function. Your A/CвЂ™s components rely heavily on the refrigerant to cool the vehicle. Most often this issue is caused by a refrigerant leak.

Refrigerant is a fluid that turns into a gas and back to liquid form, flowing throughout the system. The Air Conditioning system is comprised of many components including a compressor that is driven by the engine an expansion valve that regulates the flow of refrigerant and two heat exchangers including the evaporator and condenser. There are several reasons why your carвЂ™s air conditioner may stop working, here are the most common problems and how they can be fixed.

#Fan control for a blower motor in a car how to

However, you donвЂ™t want to be without air conditioning too long because the temperatures will only continue to rise! Most people are not sure how to diagnose their carвЂ™s A/C problems.

Luckily, this is the time of year that if your AC does go out, itвЂ™s not the end of the world. Afternoons can get quite stifling requiring that blast of cool air from your air conditioner.

In Arizona, you may use your heater and air conditioner all in the same day just depending on the time.