how to check amp draw on a blower motor

wardeirich9263 July 08, 2022 a , amp , motor , on Comment

This one compares amperage draw of the PSC fan motor to the ECM motor under the same conditions. Wait ten minutes plug the unit in again and turn on the heater.

Hvac R Amp Draw For Blower Motor Pt 1 Youtube

If its less than 20 then you got to know that your blower motor is drawing low amperage.

. First check the amperage draw that your motor needs. 2 Place your multimeter in Ohms mode. Generally Its possible to get up to 20 amps or more for the blower.

This will be great in allowing you to determine if the amp draw on your compressor is causing your breaker to trip. The amperage draw of your Dakota or Durangos blower motor should be under 40 amps. This is what the math would look like.

Next connect the metal sensor on the red and black wires from your multimeter to the positive and negative terminals. I suspect the blower is drawing excess current but I dont want to replace it before verifying. Engine running AC on fan on high setting 4 and the meter measured 198 amps.

The amperage of a gadget indicates how much electricity it consumes. Lastly check the display of the multimeter and remove the sensors. I cant find the limits in my searches.

Power your engine with the ignition key to measure the blower motor electrical connector purple wire for current. Checking Blower Motor Amps. This video is part of the heating and cooling series of tra.

Under the glove compartment door there is a soft panel that can be moved out of the way exposing a brown wire which is the ground for the blower. 1 Disconnect the blower motor from its electrical connector. Connect the amp clamp from your electrical meter around the power wire.

Using a multimeter set on the Ohm scale use the positive lead and test the black wire. This brown wire is used to ground this Jettas blower motor. 4 Divide 125 by the resistance value you got in step 3.

Unplug the power supplys negative and positive wires. Check the rotation of the fan. This motor will draw 1800-watts peak power during motor startup only.

Open up the blower compartment of the furnace or air handler. The current is reduced by rising the voltage. The blower motors amperage draw should be below.

So a 14-gauge wire is medium sized 12-gauge would be a little bigger and 10-gauge is the. Lets take a look at your amperage draw test results. Would anyone be able to provide me with the current specifications for the heater blower motor in a 2005 Chevy Silverado.

Then run the motor and find the positive and negative terminals. Locate the power wire leading to the blower motor. 3 Measure the resistance of the blower motor with your multimeter.

On the name tag of the motor the amps will be indicated. Then prepare your multimeter to get amps. 2 Place your multimeter in Ohms mode.

To check the purple wire for current use your ignition key and turn it to the run setting turn the heater power to full power and set the multimeter to DC power. Read the amp draw of the blower motor. Blower Amp Draw Youtube Clear the vent area of dust and debris.

Use your multimeters positive lead to measure the black wire. I just replaced the resistor because one of the wires melted. In general you can test the blower motor resistor using a multimeter with the following steps.

I also included the amp draw test for the. The amperage draw of the blower motor is below the Amps specified. Learn what happens to the amp draw of a PSC blower when airflow is restricted.

The answer to the question of the last videoThis video is part of the heating and cooling series of training videos made to accompany my websites. We have a free standing frame thats compatible with our. Youll be testing across the blower motors connector and not the vehicles wiring harness connector.

125 04 3125 and this would translate to 3125 Amps. 3 Measure the resistance of the blower motor with your multimeter. Disconnect the blower motor from its electrical connector.

HOW TO MEASURE BLOWER MOTOR AMP DRAW.

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