Do you need a resistor to run a fan?
Do you need a resistor to run a fan?
Fans normally run on 12V (yellow + black), you can often get the desired result running them either on 7V (yellow + red) or 5V (red + black), without needing to burn extra power in a resistor. If you do end up needing a resistor, you’ll probably just have to experiment since it depends on your needs and your fans.
Why does my blower resistor keep going bad?
Trent, one of the biggest reasons for blower motor resistors to have shorten life is actually because of faulty blower motor drawing too many amps, some times melting wires/plugs, heating up resistors shortening their life. Many Dodge forums tell of this problem.
Can you use inline resistors to quiet fans?
If you are using the low rpm yate loons, take note, this works great, and you can quiet 5 fans for a buck. Running resistors in parallel will reduce the current going through each one so they don’t get as hot. It lets you use the common 1/4W ones. You would need higher value resistors though. For each one added you multiple the value you needed.
Is there such a thing as an inline resistor?
There’s no such thing. Voltage loss to resistor depends on current going through it (U=IR) and current depends also on fan which isn’t exactly linear, plain resistive load. There’s no such thing. Voltage loss to resistor depends on current going through it (U=IR) and current depends also on fan which isn’t exactly linear, plain resistive load.
What does the resistor on a heater do?
It is responsible for controlling the blower motor’s fan speed. When fan speed is changed via the knob on the instrument cluster, the blower motor resistor changes setting, which changes the speed of the blower motor.
Trent, one of the biggest reasons for blower motor resistors to have shorten life is actually because of faulty blower motor drawing too many amps, some times melting wires/plugs, heating up resistors shortening their life. Many Dodge forums tell of this problem.
What does the blower motor resistor do in a car?
The blower motor resistor is an electrical component that is a part of the vehicle’s heating and air conditioning system. It is responsible for controlling the blower motor’s fan speed. When fan speed is changed via the knob on the instrument cluster, the blower motor resistor changes setting, which changes the speed of the blower motor.
What are the symptoms of a bad heater motor resistor?
Symptoms of a Bad or Failing Heater Blower Motor Resistor. 1 1. Blower motor stuck on one speed. A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting. The blower 2 2. Blower motor does not work on certain settings. 3 3. No air from the vehicle’s vents.
