Why does a blower motor resistor fail

Hi, Does the blower motor run with the switch in the OFF position? If you leave the blower motor switched continually on you may not notice this. Blower motor does not work on certain settings.

The change in resistance then limits the current through the motor, which dictates the speed at which the blower fan works. This article will focus on mechanical blower resistors , their .

Did you eat the second resistor and they bought the motor?

In this video we go over testing blower motor resistors found in Ford vehicles with manual climate control.

I only recommend Motorcraft Blower Motor Resistor. Turns out the ignition switch was bad. It was causing the blower motor to stay on even when the ignition was in the off position.

When the resister of the blower motor starts to fail , the motor operates only intermittently. The higher current can make the jump across the resistor contacts that are going bad and get the blower motor to . The blower motor relay controls the current used to power the blower motor , and is subject to the constant on and off switching. Over time, it can eventually wear out. Also, does anyone have an idea HOW TO TEST a repaired FSU? What causes blower motor and resister failure and how to accurately diagnose blower motor problems . A Honda Odyssey Blower Motor Resistor Replacement costs between $1and $2on average.

We do not recommend immediately suspecting the blower motor resistor of failure when the symptoms that were mentioned occur. Labor costs are estimated between $and $89. These resistor modules often fail from heat stress that can melt plastic connectors. Every car blows air through the blower, however, the thing controlling the process is the Blower Motor Resistor. It will control the amount of air that is allowed through the vents.

If your car is still working on the highest setting then your blower is in good condition. And on the contrary, if you do not see . How often do heater blower motor resistors need to be replaced? A Toyota Corolla Blower Motor Resistor Replacement costs between $and $on average.

A Pontiac Grand Prix Blower Motor Resistor Replacement costs between $and $1on average. Chevrolet Colorado AC Blower Not Working Correctly Due to Failed Resistor - 4reports. Not long after this intermittency problem erupte the resistor failed . So to diagnose, simply check the condition of the circuit board if it is still in good shape or if it is already . Dodge blower resistor and connector kit.

It worked on high only and sometimes not at all.