I have checked every thing i know of the blower works and it has power going to it and the only thing that is not working is the ground wire i can bypass it by running to the battery but i dont have any control of the speed of the blower from the control switch so maybe some one can tell my why i have no ground
thank for your time
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: my blower is not working
Description and OperationNotes
The heater blower motor switch resistor has the following features:
The assembly is located in the engine compartment on the evaporator housing toward the center of the vehicle.
Three resistor elements are mounted on the resistor board to provide four blower motor speeds.
Depending on the heater blower motor switch position, series resistance is added or bypassed in the A/C blower motor circuit to decrease or increase A/C blower motor speed.
An overheating protective device (thermal limiter) will open the resistor coil when the temperature reaches 121°C (250°F) interrupting the blower motor operation in all speeds except HI.
The thermal limiter cannot be reset and is not serviceable
Here is the description of how it works and the location of the blower motor resistor that is most commonly the Problem If you don't receive the pictures or text email me at email@example.com and Ill email them to you if this information is helpful please give me a fixya Rating and of course contact me if there is anything I can do to help.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
A few things to check if you are mechanically inclined. Check fuses to make sure you are getting power to the on/off switch, then check power to the blower motor. If you have power up to the blower motor, you might have a bad motor. If you don't have power to the blower motor, you may have a bad switch.
To verify if blower motor is good, run direct power and ground to it. If it runs, you know blower motor is good.
Hi Victor, I'm glad to help!
First Victor, let's make sure its not the blower motor. Run power and ground from the battery to the blower motor and see if it works, if it doesn't replace the motor. If it does work. NOTE: Most vehicles, when the blower motor quits works its because the blower resister is bad. The fuse that powers the motor is usually a 30 amp fuse, on some vehicles its under the hood on others its in the fuse box inside the vehicle. Before going through all this first check power and ground at the blower motor connector to see if your loosing POWER or GROUND. Because you need to know which one your loosing. BUT, if I were working on it and knowing what I know about blower motors not working I'd replace the BLOWER RESISTER first. Hope this helps and have an awesome day Vivtor.
There are several things to check before you replace the blower, first you need a multi-meter to see if power is even going to the blower. start the vehicle, and turn the blower on. disconnect the wires at the blower, and check for power. This will tell you if your getting power at the blower. If you are, then you know the blower is bad. If no power, then check your wiring going back,. just ot make sure no broken wires. You then can check the switch, and relay. Hope this helps
With everything connected there should be power on both wires going to the blower motor. If there is no power than remove the blower motor relay in the fuse block under the hood. There should be power at two of the pins and two of the pins should be grounded. One pin is powered by the 50 amp Blower fuse and the other gets its power from the function selector (the switch that controls where the air comes out.
If only one pin has power than pull the 50amp blower fuse If power goes away than you know that the relay is not recieving power from the function selector. That is powered by a 15 amp fuse in the cetral fuse block (under the dash i think). If that fuse is good than check for power at the pink with black wire at the function switch. If there is power there tan check for power at the yellow with red wire and the function switch. If there is no power than you have a bad function switch.
This is a ground side controlled blower motor. The speed switch controls the path to ground. so if there is power to the blower motor on the orange with red wire you can ground the orange with black wire at the blower motor and it should run.
That should be enough info to get you started. Let me know what you find and I'll be happy to help further.
The simplest thing to do would be to go to Advance Auto, or Auto Zone and have them check out the problem for you. Usually they are good about doing these things. If you want to do it yourself, start with the fuse (see if it's good), if so then see if you can run the blower diectly from the battery (only if you know what you are doing), last check the blower switch to see if it needs replacing. Chances are it's one of the three.
Check for possible bad ground to the blower motor first. Rig yourself up a jumper wire from ground side of battery to the mounting screw on blower motor. Motor should work if you have power to motor.Or motor is bad. The control on dash for a/c problem is in the wiring, go back and check wiring for bad connector plug or wire causing the light to come on. Hope this will help you.
Its possible that your blower motor is bad. one way to test it is to use a test light and check your power wire going to the blower, if it shows there is power going directly to the blower, then most likely, the blower is bad, but check your ground just to be sure. If there is no power going to your blower, then check your resistor. If theres no power going to the resistor, then check the plug going to the resistor and continuiously work your way to the switches, but always starting at the blower, or accessorie that isnt working, and making your way through the system until you get to the source of the electrical current.
Hope this helps.
check your fuses first if there good see if there is power to the blower if there is and the blower wont turn on its the blower if no power to the blower there is a little silver box by the blower may be rusted looks kind of like a relay replace that you should be good to go i had one do the same thing