How can I test my car fan?

How can I test my car fan?

How to Check a Radiator Fan

1. Determine whether your radiator fan is manual or electric.
2. To check an electric radiator fan, start the car and let it get up to the temperature where the fan normally kicks on.
3. Use the volt meter to test if there is power to the wires.
4. Normal voltage for a radiator fan is around 12 volts.

How do you test a fan temperature switch?

Turn on the burner and slowly increase the water temperature. The ohmeter should be turned on and have a reading of high resistance. When the water reaches between 180 to 220 degrees Fahrenheit, the switch should turn on and the resistance seen by the ohmmeter should change to zero.

How do you test if a fan is working?

Look and Listen. The fastest way to tell if your computer’s fan has stopped working is to visually inspect it. If it’s a desktop computer, you can usually see the fan rotating on the back of the case. If the fan is not moving, you must replace it immediately, before using your computer further.

How do you test a radiator fan with a multimeter?

Kick off the engine or switch the ignition key off to IG2. Set the multimeter’s meter to ’20’ in the DCV section as you will be testing 12V circuits. Touch the red probe to any of the two contacts and take the reading. The value should be around 12 volts.

How do you test a fan motor with a multimeter?

How do you test a VW fan control module?

To test a fan motor, unplug the electrical connector at the motor and use fused jumper wires to connect battery power and ground directly to the fan. If the fan does not operate, replace the motor. 2. If the motor tests OK, check the cooling fan thermo switch, located at the bottom of the radiator on the driver’s side.

How do you diagnose cooling fan problems?

To check the temperature at which the fan comes on, turn the A/C off and keep the engine running until it reaches normal operating temperature. Most fans should come on when the coolant reaches about 200 to 230 degrees. If the fan does not come on, something in the control circuit is defective.