Blower Motor Wont Run - Hyundai Forums : Hyundai Forum
 
LinkBack Thread Tools
#1 Old 07-06-2011, 11:01 PM
Junior Member
 
Join Date: Jul 2011
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
bert1913
(Thread Starter)
2005 santa fe with manual heater controls. blower motor stop working. so i checked power to motor, getting 12 volts. installed new motor and still wont work, i grounded the yellow wire and motor ran on high. if the switch is bad why was i getting 12 volts? also the motor would not run on high so this seems to eilminate a resistor problem.
bert1913 is offline  
Sponsored Links
Advertisement
 
#2 Old 07-08-2011, 08:26 AM
Senior Member
 
sbr711's Avatar
 
Join Date: Apr 2010
Location: hiding from those who might be looking for me
I dont own Hyundai car, I drive everybody else Hyundai during day
Posts: 8,854
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 63 Post(s)
sbr711 is an unknown quantity at this point
QUOTE (bert1913 @ Jul 6 2011, 11:01 PM)
Quote:
2005 santa fe with manual heater controls. blower motor stop working. so i checked power to motor, getting 12 volts. installed new motor and still wont work, i grounded the yellow wire and motor ran on high. if the switch is bad why was i getting 12 volts? also the motor would not run on high so this seems to eilminate a resistor problem.

Switch works ground side of circuit.... diod you probe both terminal of motor connector for source voltage and ground at same time ??

Turn fan switch on,, then with thumb, carefully push in on center of knob and rock slightly and see if the fan takes off running.. most common problem is the fan switch, typically on the parts shelf if dealer any good.. other uncommon suspect is the fan resistor, pull it and look for strip to be broken from terminal.

<--- please fill in the 'location' and 'what you drive' boxes on your personal profile page.
This information makes it much easier for other members to answer/comment on your posts.
sbr711 is offline  
#3 Old 07-12-2011, 10:50 PM
Junior Member
 
Join Date: Jul 2011
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
reyhyunai
I have the same problem with my 2003 Santa Fe. I have replaced the Resistor and blower switch also checked fuses. I checked voltage and get 14V at motor also get 14V at Motor ground terminal (when grounded). when grounded the blower motor kicks on to HIGH. But when I don't add the ground it does not work. I am at a loss.

NOTE:
All other functions work i.e. A/C, vent opens and closes etc...

Any help would be appreciated. Thank you
reyhyunai is offline  
#4 Old 02-26-2013, 06:07 PM
Junior Member
 
Join Date: Feb 2013
Location: Califon NJ
Drives 2005 Santa Fe
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
used2005santafe is an unknown quantity at this point
2005 Santa Fe - blower wont run

I'm replying to this old post but with similar problem, need advice. 2005 Santa Fe, fan doesn't blow at all, on any of the speeds. AC or heat doesn't matter, still doesn't run. After reading lots of posts, I tried the common culprit of the blower switch, just replaced it (great instructions on here btw), but still no results. Tried pressing hard on the control knob while turning, but nothing happens. Only other info I have is the highest speed hasn't worked in a few years, so possibly the resistor gave out, and since there is a problem with the high speed, speeds 1-3 don't work me either... To make matters worse, this is my girlfriend's vehicle, and she's relying on me to fix it since its still winter and we are in the northeast. Any advice you can provide would be helpful!!!!

Thanks in advance
used2005santafe is offline  
#5 Old 02-26-2013, 07:01 PM
Senior Member
 
Join Date: Feb 2011
Location: France (Europe)
Drives a Santa Fe 2.0L diesel, 4WD, year 2004
Posts: 801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
paul03 is an unknown quantity at this point
OK y'all,
Little insight.
Motor is directly hooked up to positive, 12volts.
Ground is switched via a series resisitor with taps. If switch at high, it is direct to ground.
If switched to lower speeds the series resistor is put in, higher resistance / lower setting/ giving lower speed. It's 1 resistor with multiple divided sections by taps.
Normally switch to ground should work directly for max speed.
If resistor is broken, all following taps (lower speeds) will also be lost.
So check from high to low speeds. When a middle speed works but lowest not the resistor could be broken somewhere in the middle.
When switch is broken, no speed could be reached for no contact.
So the most stress for the resistor is at the higher speed settings (not max).
Hense the most chance of breaking/burning.
The switch itself however also seems weak seen the many complains.
Good luck with repairs.
Paul
paul03 is offline  
#6 Old 02-26-2013, 07:26 PM
Junior Member
 
Join Date: Feb 2013
Location: Califon NJ
Drives 2005 Santa Fe
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
used2005santafe is an unknown quantity at this point
Thanks Paul... But based on the problem I described in my previous post, any idea what could be causing my failure? Please try to describe in as much detail as possible, thanks!
used2005santafe is offline  
#7 Old 02-26-2013, 11:30 PM
Senior Member
 
Join Date: Dec 2010
Location: Niceville, Florida
Drives: 2007 Santa Fe Limited, 2005 & 2006 GLS (2.7), 1995 Maxima SE
Posts: 160
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
FireMark is an unknown quantity at this point
I just replaced the blower motor switch using lovemysantafe's great PDF instructions. I had tried pushing on the center of the switch while adjusting the speed with no results. I was shocked when the blower motor still didn't run. I searched and found this thread from 2011.

Blower Fan Not Working Sometimes?

With the key on and the switch set on high I reached under the glove box and gave the plenum box a couple of sharp whacks. WHALA, the motor began to run! It now runs on all speeds. I have since removed the filter (as further outlined in the post) and vacuumed out a small collection of oak leaves that had collected in the case. I also used compressed air and blew the case out.

The filter wasn't all that dirty and there really weren't that many leaves. I had previously changed out the filter with a cheap one piece filter from AZ. I will now look for for the two piece filter as a replacement. Rockauto has the ATP two piece carbon filter for $14.85.

Hopefully this will do it. Otherwise I guess that the motor is dying and will have to be replaced. I know that "whacking" the motor case isn't the proper technical repair - but it did the trick...

Be Safe, Mark V.
FireMark is offline  
#8 Old 02-27-2013, 09:43 AM
Senior Member
 
Join Date: Feb 2011
Location: France (Europe)
Drives a Santa Fe 2.0L diesel, 4WD, year 2004
Posts: 801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
paul03 is an unknown quantity at this point
Quote:
Originally Posted by used2005santafe View Post
Thanks Paul... But based on the problem I described in my previous post, any idea what could be causing my failure? Please try to describe in as much detail as possible, thanks!
Hi Used2005,
Check if you do have a ground line at the switch itself. If that's lost it cannot work on any setting.
Maybe the motor itself is stuck or burnt or lost contact with the (even new) switch.
The highest speed setting does not use the resistor at all, as mentioned, a direct ground to the motor then.
Because it is not running at highest speed I would check voltages at the motor itself (or wiring going to it). Another thing, do check the fuse, but I suppose you've done that already.
A stationary 12 volts should be at the motor, switched grounds on the other side.
I don't know if all the switch lines are connected via a lug at the resistor, also for highest speed, but I suppose so.
You can put a grounding wire direct at the motor at it's switched connection (of course not at the 12 volts line, it will blow your fuse).
It should start running then.
It cannot damage anything (like switch or resistor) because they should deliver a ground. If not running, the motor itself is at fault or stuck.
Also measure the switched line.
At highest setting of the switch it should deliver a ground, on other settings a not to high resistance to ground (getting higher at lower speed setting).
Good luck,
Paul
paul03 is offline  
#9 Old 07-22-2013, 05:39 AM
Junior Member
 
Join Date: Jul 2013
Location: DuBois / PA
Santa Fe
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Jenscar is an unknown quantity at this point
Blower motor switch 2005 Santa Fe

Like many people I had problems with the bower motor circuit in my wife's 2005 Santa Fe. The blower would not work on any settings. I trouble shoot all the other components and finally narrowed it down to the blower switch. (Pushing / rocking the switch as suggested in other posts worked was the final proof.) After getting the switch out I saw it could come apart by gently prying open the back while pushing in the plastic tabs. Once apart I found a brush or shoe that is held against the contact points by a spring. The brush was cocked, stuck with the spring compressed & not making contact with the contacts. By working it in and out and adding a little grease left over from a plastic garage door opener gear I got it to spring out reliably. I popped the switch back together re-installed it and it has worked well since.
Jenscar is offline  
#10 Old 07-22-2013, 10:56 AM
Senior Member
 
Join Date: Feb 2011
Location: France (Europe)
Drives a Santa Fe 2.0L diesel, 4WD, year 2004
Posts: 801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
paul03 is an unknown quantity at this point
Hi All,
Reading your stories (and previous threads about it), I must conclude that switch simply isn't up to it's task for high power switching at the high settings.
At high setting, so at highest current, it seems to sparks a lot inside the switch, in time producing black sood.
Maybe you replaced it already, but I suggest it would be better to simply add a little SPST 12v car relay like the ones found in the fusebox engine bay, in between that high switch line. They cost only a few $ at any parts store..
Relays are used with all the high current switching in the car like headlights, wiper motor etc.
The fan switch is switching a direct ground to the fan at this high setting. At lower settings it is switching ground to taps at a multiple series resistor, located at the fan.
So you would need to hook up one side of the relay coil to an ignition switch controlled 12 volts line (maybe from another connector inside the dash like the radio, it doesn't need much current), the other coil pin to that fan switch high pin.
One of the relay switch pins to the ground, found at the fan switch being the common line, the other switch pin to the original outgoing high line to the fan youve detached from the fan switch.
Now the fan switch will activate the relay (only at high setting) and the relay will switch the high current to the fan.
These relays last a long time so I suppose never need to be replaced.
Maybe this will cure it once and for all.

Good luck,
Paul
paul03 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hyundai Forums : Hyundai Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome