How to test the resistance or failure in a blower motor resistor pack with a multimeter. Why do they fail and what are the symptoms? Please subscribe for more content.
Пікірлер: 33
@guillaumegiroux9425Ай бұрын
Thank you sir, I learned so much. Indeed, I can confirm my resistor is blowned up. Time to replace, although I want to find the culprit. Thank you again!
@AdamMechanicАй бұрын
My pleasure. Glad it has helped you out. Thanks!
@javier25653 ай бұрын
Perfect this kind of videos have to be viral
@AdamMechanic3 ай бұрын
Thank you!
@paulclark46687 ай бұрын
Excellent no nonsense explanation and diagnosis.😊
@AdamMechanic7 ай бұрын
Cheers, thanks for the kind words!
@georgemcmanus59439 ай бұрын
Great information. Thank you. New sub. 👍
@AdamMechanic9 ай бұрын
Great, glad it was helpful! Thanks very much for the support!
@frankandtube9 ай бұрын
I believe 0.4 ohm is position 3, 1 ohm is position 2 and 2.5 ohm is position 1. position 4 does not involve the resistor pack.
@AdamMechanicАй бұрын
Yes, the higher the resistance, the lower the speed setting.
@tomnaquin8903 Жыл бұрын
The little green fuse could be blown.
@AdamMechanicАй бұрын
Yes, that could also be true.
@camperp19511 ай бұрын
My fan has just stopped working full stop,1,2,3,4 nothing at all,fuse is ok,will it be the resistor gone?
@AdamMechanic11 ай бұрын
Could be, but more likely the relay, blower motor or a wiring connection/ earth.
@kevinarnott1172 Жыл бұрын
Hi Adam, are you aware if a 2013 ford galaxy resistor needs calerbrating
@AdamMechanic Жыл бұрын
It shouldn’t do. They are normally just plug in parts, not intelligent or needing programming.
@kevinarnott1172 Жыл бұрын
@@AdamMechanic thanks Adam, it's clearly a duff one then.. warranty claim
@spudkiss19849 ай бұрын
What if resistor n blower got no power relay n fuses are good
@AdamMechanic9 ай бұрын
Hi. I’d probably unplug the blower motor itself next, turn it on in the car and see if voltage is getting to the motor with a multimeter on the connector side. If 11.5- 12v is getting that far than it will be the motor itself that’s gone. Please subscribe if it’s helpful! Cheers.
@AdamMechanic9 ай бұрын
Other things to check are bad connections and earth, then probably switch after that. Cheers
@shanedowley287711 ай бұрын
Getting a reading of •3ohms on one of the pins is this bad
@AdamMechanic11 ай бұрын
That is probably ok. The fact you’re getting a reading tells me the circuit is complete and should be functioning fine. What is the symptom/s you are trying to solve?
@zalanocsko15411 ай бұрын
hi, so these resistors form a voltage divider? and do they regulate the voltage to the motor or the current? I read about current regulation in many places, but according to my knowledge, the speed of dc motors depends on the voltage.
@AdamMechanic11 ай бұрын
Yes, the resistors restrict the amount of current technically (we rate it in voltage just for ease of understanding) allowed to pass through each branch. So 12v/ same current comes in on all branches/ speed setting but only a set amount is allowed through the resistor to the motor. Please subscribe if your finding the videos helpful! Cheers
@zalanocsko15411 ай бұрын
@@AdamMechanic thx. so the voltage technically does not change. but because the resistors are connected in series in front of the motor, so they add to the internal resistance of the motor, which results in a lower current if the resistance is higher?
@AdamMechanic11 ай бұрын
Yes, you’ve got it! Thanks for the sub, much appreciated!
@andylasers7288 Жыл бұрын
Hey Adam, How does the full speed connect to the blower, by a relay? I have all the slow speeds work on a 2008 Kangoo but the full doesn't
@AdamMechanic Жыл бұрын
Hi, it would go through the same relay as the other speeds normally. Sounds like you have either high resistance in the motor itself, or the wiring leading to it. One of those is not allowing the motor to use the full 12v
@andylasers7288 Жыл бұрын
@@AdamMechanic Yes it looks like that, but I cannot find the route of the cable from the knob to the blower. I tested the blower direct with 12V it is fine of course seeing that it works at the slower speeds. I need to see a diagram really to follow those cables and see if another connection exists somewhere.