The more accurate way to test if the blower motor is bad in Ford Escape is to connect it directly to a 12 volt battery using alligator clip test cable. If the volts reading is normal, it indicates a fault in the blower motor.Turn on the multimeter and insert the probes into the connector, one at each point making sure the metal part of probes don’t touch each other.Unplug the electrical connector from the blower motor.The most common signs of failing blower motor in Ford Escape are unusual whirring noises coming from behind the dashboard when air conditioner is in operation, weak or inconsistent airflow, and in rare cases a burning plastic odor or smoke coming from AC vents especially when fan speed is set to high. Early signs of blower motor failureīlower motors can fail at any time without warning, but usually there are early signs before they stop working. When you turn on the AC fan in your Escape, and the air does not flow out of the vents, or the airflow is poor or inconsistent, it could be due to a broken blower motor. You can also use a test light for this purpose. The most basic multimeter voltage test to check if the blower motor is getting any current. If the volts reading is normal, then the fault probably lies with the blower motor itself.If you do not see any volts, or if you only see volts at certain fan speed setting, it could be due to a bad resistor.The output voltage on the multimeter should read around 12 volts.Turn on the multimeter and insert the probes into the connector, one at each point making sure the metal part of probes don’t touch each other – otherwise it will short out and blow up the fuse, and may cause damage to the vehicle’s electrical system.Remove the electrical connector from the blower motor.Locate the blower motor in your Escape, typically located under the passenger side dashboard.Follow this procedure after you’ve ruled out any problem with the blower motor fuse or relay. There are many ways to test a resistor, but the most easiest and basic method is to check the voltage at the electrical connector on the blower motor with a multimeter. However, if the resistor has burned out due to overheating, the blower motor may cease to function. Yes, the blower motor can still be operative after the resistor goes bad, but it may only work at high speed, or remain stuck at one fan speed. Will a blower motor work if the resistor is bad?
Therefore it is generally recommended to replace the old blower motor in Escape as well when replacing the resistor. What causes blower motor resistor to fail in Escape?Ī struggling blower motor due to internal component degradation can put a lot of strain on the resistor when in operation, causing it to overheat and burnout. The resistor is typically located under the passenger side dashboard, near the blower motor. If the resistor module develops a fault, it can cause the blower motor to stop working. When you increase or decrease the AC fan speed in your Escape, the climate control unit signals the resistor module to increase or decrease the flow of electric current to the blower motor. The function of the blower motor resistor is to control the speed of the blower motor. Note: Vehicles with auto climate control may not have a blower motor relay. But before you begin the replacement, it is highly recommended to disconnect the vehicle’s battery. You can test the relay by swapping it with other relays in the fuse box with similar amp rating. If you are lucky, the wiring diagram will be drawn on the facing. Typically relays are located in the engine compartment or under the steering wheel on the left-hand side. The information may be listed in your vehicle’s owners manual. A bad relay can also be the cause of AC blower motor failure in your Ford Escape.įirst of all, you should find out where the blower motor relay is located in your particular model of Escape. Relays are electromagnetic switches that are used to switch electrical loads on and off. It does not matter in which direction you insert the fuse. You must replace it with one of the same amperage and therefore the same color. If the metal strip is broken in the middle, the fuse has blown.
To check the fuse, pull it out of the fuse box using a fuse puller or needle nose plier and hold it against the light. If the fuse is blown, replace it with a new one with the specified amp rating.
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In case of a faulty fuse, the circuit is interrupted and the motor can not work.Ĭheck the owners manual of your Escape or the fuse box cover to find the exact location of the fuse for the blower motor. The AC blower motor in Ford Escape needs electricity to work.
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