Would need to know year , make , model vehicle to answer that
SOURCE: heater fan not working in 05 Chevy Equinox
I suspect you also checked the fuses, some vehicles are double protected, especially since you usually have to remove the entire dash panel to get to the heater fan blower motor. It should be in the middle or under the glove box, should be located in a plastic box that has like a bell shape to where the motor is. check fuses then check wiring, and make absolutely certain the relay was the correct one that you changed, in a 3 year old vehicle the fan motor should not be bad yet.
SOURCE: A/C BLOWER
most likely its the blower motor resister and is located behind the glove box. there are a few philips head screws you will need to remove inside the glove box and under the glove box to get the glove box out after that it should be a walk in the park
SOURCE: location of heater blower relay on '92 Accord
If the fuse is good,check to see if there is voltage to the blower motor,if there is,replace the blower motor.Sometimes,not always,if you bump the blower motor,it will start working,if this happens,then the blower motor is bad,if it does not,the fan switch could be bad,but the relay is usally near the blower motor.Testing it with a test light is the best way to test it,ground one end of the test light,the other end has a point on it.Use the piont of the test light to touch all the legs on the relay,with the key on,and the fan on high.The test light will light up,on almost all the legs,but it will also activate the relay when you touch the right leg of the relay,the relay needs to stay plugged up as you do this.If you can not access the legs of the relay,because of a skirt on the relay,push the point of the relay into the wire that you are testing,or into the plug,near the leg of the relay.The legs I am refuring to,are the prongs on the relay.If the relay clicks and turns the fan on,when you touch the right one,then the fan,and the relay are good,it will be the blower fan switch.Now if you already have high,blower fan,and the lower speeds are the problem,replace the blower resister,It is mounted right next to the blower motor,and has about 7 wires plugged into it.
SOURCE: Blower motor location
Hi, I had to replace mine also. It's located under the glove compartment, passenger side. Pull off the chrome moulding around the glove box and undo the screws. This will allow you access to the blower motor cover. Be careful of the light inside the glove box. You have to ubdo it's screw and feed it through the back. Undo the cover to expose the blower motor. You can also replace the interior filter in the same area if you haven't done so yet. Two screws on a narrow cover.
Good luck.
Norm
The installation of this relay is either to remove from the fuse box, or if located near the heater fan housing then you will need to remove the mounting screws, remove the wiring clip, then reverse to install.
I hope that this has helped you. D.R. Wilkins
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