Why do blower motors fail?
In some cars, a failed blower motor resistor can cause a heater fan to stop working completely. In most cases, a blower motor resistor fails due to corrosion or overheating. In most cases when a blower control module fails, the blower motor doesn’t work at all.Click to see full answer. Consequently, what can cause a…
In some cars, a failed blower motor resistor can cause a heater fan to stop working completely. In most cases, a blower motor resistor fails due to corrosion or overheating. In most cases when a blower control module fails, the blower motor doesn’t work at all.Click to see full answer. Consequently, what can cause a blower motor to stop working?In a situation where the motor doesn’t work on any speed, the most likely causes are: a blown power supply fuse, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely. Start by checking the blower fuse and HVAC controller fuse.Furthermore, what happens when a blower motor resistor goes bad? If you have faulty blower motor resistor you may experience low airflow coming from the vents even when the fan is all the way on high. In some cases bad blower motor resistor may not even turn the blower motor fan as a result your fan will not work at all and there will be no air coming from the vents. Secondly, what are the symptoms of a bad blower motor? Symptoms of a Bad or Failing Heater Blower Motor Weak airflow from the vents. One of the first symptoms of a potential problem with the vehicle’s heater blower motor is low airflow from the vents. Fan only blows at certain speeds. Another symptom of a bad or failing heater blower motor is a motor that only functions at certain speeds. No air from the vents. How long do blower motors last? 10 to 20 years
