S10 Blower Motor Resistor Symptoms

- November 10, 2018

How to test vehicle acheat blower motor. Blower motor resistors can wear out.

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In some cars a failed blower motor resistor can cause a heater fan to stop working completely.

S10 blower motor resistor symptoms. When your blower motor goes bad you will not get ac or heat to blow inside of your vehicle you will also not be able to defrost your windows. If the resistor shorts or fails it may cause the blower motor to remain stuck on one fan speed. There are several symptoms that appear when the resistor of the blower motor is going bad.

The blower motor no longer works correctly if this occurs. A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting. Recognizing these symptoms and replacing the resistor returns the airflow through the car to the proper levels.

It is highly probable that the blower motor switch has stopped working. The blower motor resistor changes the speed of the fan but the switch on your. The most common symptom of a failed blower motor resistor is when the heater fan only runs at the highest speed setting 4 or 5 and doesnt work at low speeds.

Chevrolet s10 heater is not working repair symptoms heater blower motor replacement when the blower motor fails the air conditioner and heater may still work and heat or cool may be felt at the vents but the air pressure will be dramatically decreased. In most cases a blower motor resistor fails due to corrosion or overheating. If you start at the blower motor and check resistance in the circuit you will find the problem in no time.

Another symptom of a faulty blower motor resistor is no air from the vehicles vents at all. Blower motor works in high speed only. Blower motor works in some speeds but not all speeds.

The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. This causes the blower motor to malfunction or not function at all in one or more settings. When the blower motor resistor block fails youll usually see one of the following symptoms.

In this video steve explains how a fan control switch does its job and how a blower motor resistor works with it. A blower motor without power will not be able to produce any air pressure and as a result the heating and air conditioning system will be left with no air coming from the vents. Another symptom of a faulty blower motor resistor is that the blower motor is not able to work on some settings.

The most common symptom of a faulty blower motor resistor is a blower fan that only works on one speed usually high. Power to the blower motor is fed through the blower motor resistor so if it fails or has any issues power can be cut off to the motor. What usually happens when the blower motor resistor block fails one of the coils has burned out.

This can be annoying but troubleshooting is easy.