Are resistors used to control the speed of the blower motor on some vehicles?

Are resistors used to control the speed of the blower motor on some vehicles?

Blower resistors are resistors which are used to control the fan speed of automotive blowers. Blower resistors, being a mechanical component, are prone to wear and are the most common point of failure in a car’s heating system.

Does a resistor control fan speed?

The blower motor resistor is responsible for controlling the blower motor speed. In the past, this was done by varying the voltage supplied to the blower motor.

Can you repair a blower motor resistor?

The resistor module is easy and inexpensive to replace. It’s then typically installed in the ductwork, near the car blower—either under the dash or under the hood. (Refer to a service manual to locate yours.) Purchase a new resistor module at the auto parts store (usually less than $25).

Why is my Acura 3.2 TL not blowing air?

I have a 1999 Acura 3.2 TL and while driving the a/c quit working. the blower will not come on and neither does the compressor. I have taken out the blower resistor and all the wires look good, nothing looks fried and I have pulled the blower motor and jumped it straight to the battery and it runs fine.

What are the symptoms of a failed blower motor resistor?

Blower motor resistor problems. Problems with a blower motor resistor are common in many cars. The most common symptom of a failed blower motor resistor is when the heater fan only runs at high speed and doesn’t work at low speeds.

How much does it cost to replace a blower motor resistor?

The blower motor resistor or control module replacement is not very expensive. For example, one of our colleagues had a problem with his 2011 Ford Escape: the fan only worked at the speed 4. He paid $50 to diagnose and $112 to replace the resistor at a local Ford dealership.

Why is no air coming out of my Acura radiator?

I tried the following: 1. I change the temperature to 90 degrees but no air comes out. 2. I check the fuses on the panel under the dashboard next to the door and the fuses seem to be alright, according to the people at Acura the Radiator the Blower and the A/C Compressor are all on the same circuit so the other three would have gone as well.

I have a 1999 Acura 3.2 TL and while driving the a/c quit working. the blower will not come on and neither does the compressor. I have taken out the blower resistor and all the wires look good, nothing looks fried and I have pulled the blower motor and jumped it straight to the battery and it runs fine.

What are the symptoms of a bad blower motor resistor?

Another common symptom of a faulty blower motor resistor is a a blower motor that does not function on certain settings. If the blower motor resistors’ internal components fail it may cause the blower motor to malfunction, or not function at all on one or more of the settings.

What happens when a heater motor resistor fails?

If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. The heating and air conditioning systems may still function at one speed, however the resistor will have to be replaced in order for full functionality to be restored. 2. Blower motor does not work on certain settings

I tried the following: 1. I change the temperature to 90 degrees but no air comes out. 2. I check the fuses on the panel under the dashboard next to the door and the fuses seem to be alright, according to the people at Acura the Radiator the Blower and the A/C Compressor are all on the same circuit so the other three would have gone as well.