Problem: The fan runs at full speed all the time
Solution: This is a common problem that occurs when the heater fan blower motor speed resistor fails. The resistor regulates the amount of power going to the fan motor, so if it fails, the fan will always run at full speed. The solution is to replace the resistor with a new one.
Problem: The fan only runs on one speed
Solution: This problem can occur if the resistor is partially malfunctioning. Instead of regulating the power going to the fan motor, the resistor may only be allowing power to flow to one specific speed setting. In this case, the solution is to replace the resistor with a new one.
Problem: The fan doesn't turn on at all
Solution: If the fan doesn't turn on at all, it could be due to a problem with the resistor or a problem with the fan motor itself. To determine the cause of the problem, you will need to use a multimeter to test the resistance of the resistor. If the resistance is too low or too high, the resistor needs to be replaced. If the resistance is within the proper range, then the problem may be with the fan motor and it should be replaced.
Problem: The fan speed fluctuates
Solution: This problem can occur if the resistor is partially malfunctioning. Instead of regulating the power going to the fan motor, the resistor may be allowing power to fluctuate, causing the fan speed to fluctuate. In this case, the solution is to replace the resistor with a new one.
In conclusion, if you're experiencing problems with your LandCruiser 100 and 105 series heater fan blower motor speed resistor, it's important to diagnose and solve the problem as soon as possible. By addressing the problem early on, you can avoid costly repairs and ensure that your heating and cooling system is working at its best. If you need a replacement, you can head to cerolauto.com, where you can find high-quality, OEM LandCruiser 100/105 series heater fan blower motor speed resistor at an affordable price.