Generally i would say nobecause it just reduces the current to the motor to control the speed. If you can reach the motor and voltage and earth at the connector by back probing. If you get voltage and earth there then motor itself is faulty and voltage is missing that can be a fuse, relay or wiring fault. Hope this will help thanks
Bad blower motor? Blown blower motor fuse? Bad fan switch? Bad blower resistor pack?
Since you're checking the resistor, I would assume you checked the fuse/relay for the blower motor. If not check that. If you have then there would be an open wire between the relay and the resistor.
The blower resistor gets overheated and burns out usually because the blower motor is failing also.
If the heater fan works on all speeds, then the blower motor, blower fuse, blower relay, and blower motor resistor pack are all good. If the fan runs but nothing comes out of the vents, you have a 'mode door' issue (which might include a bad control head).
A bad heater blower motor resistor would effect one or more blower speeds other than high.
It might be your resistor, does it work on 4 but not on 1,2,3? If so, you need a new blower motor resistor.
Can you feel anything coming out of the vents. Also if you turn on the dial that controls the speed of the blower, and you dont feel anything coming out then you need a fuse or blower motor or mabe a resister for the blower motor. I would have to say that 8 out of 10 times its usually the blower motor resistor. Hope this helps
either the control head is bad or there is a blower motor resistor that is bad.
The year, make and model info would help but in most cases the blower motor resistor can be found close to the heat blower motor. So locate the blower motor and the resistor should be very close to it.
Something called a blower control module takes the place and is found in the hole where you would find a blower resistor, so there isn't a blower resistor in that vehicle. As far as the blower control module is concerned, the module is serviced as a unit. No part can be fixed or replaced. This is not to be confused with the control head in the dash. The blower control module is held into the heater box with two 8mm screws outside the firewall under the hood, where you would normally find the blower resistor pack.
Defective blower motor or blower motor resistor pack.
The blower motor speed resistor is burned out. The resistor is located close to the blower motor and is easy to change. Your local auto parts store will have that part for you.