Excessive heat can strike a death blow to your vehicle. If you've ever encountered this problem, you will know the grave repercussions it could do to your engine's metal parts. Radiators are sometimes not enough to counter extreme engine temperature, so most vehicles today are built with cooling fans that help bring the heat down several notches. At the core of these fans is a motor that enables the fan blades to spin rapidly so that more air can be delivered to the radiator. A fan motor is switched on when the radiator's coolant temperature has risen to about 195 to 210 degrees. The engine will malfunction at this heat level, so the fan motor activates the blades and keeps them turning to help lower the temperature.
Types of fan motors
As fan motors greatly aid in engine cooling, it is then important to find the right type for your vehicle. Usually, these motors differ in phases and starting capacities. There are three major classifications of fan motors:
This type of motor is commonly used for smaller fans with alternating current (AC) power. It is both energy- and cost-efficient, as it only needs minimal electricity to operate. Single-phase motors are highly durable and can be used for a long period of time, helping you save money on replacements. In addition to that, you can also convert these easily into different phases. However, single-phase motors can't operate on larger fans. Converting them will only cost you more money, so it's much better to buy a larger motor.
Also called as double-phase motors, this type is used on bigger fans and heavy-duty applications. Of course, this means more power will be delivered to your fan, but slit-phase motors require a greater amount of electricity to operate, making them less cost-efficient than single-phase ones. The upside is they're built with an automatic shut-off to prevent them from burning out even under the increased strain of heavy loads. As the motor is less likely to malfunction, replacing it every so often is not really necessary. This means more savings for you.
Capacitator-start is the most cost-efficient motor among all three, as it delivers higher torque while using lesser electricity than slit-phase. With more power, this type of motor can handle greater workload and increased strain. It also has a safety shut-off feature that closes down the unit upon reaching 75% of its load capacity, preventing it from burning out and giving you additional expense for replacement.
Fan motor replacement cost
You can get a standard fan motor for as low as $50. Price can go up to $250, depending on the brand and materials used. To get more savings, purchase a complete fan motor assembly instead of buying the part individually. This way, you can install the part yourself and ensure that all components will work well together. Fan motor assemblies are priced at $100 and up.