AC/Heat fan not working on e90?

AWe90 · 05-26-2011, 08:39 PM

My climate control fan is not working/blowing at all, although the LED screen tells me it is. Anyone know what's up?

RoundelM3 · 05-27-2011, 07:47 AM

Have you checked for a blown fuse yet?

SMOKE EM IF U GOT EM!! · 05-27-2011, 09:37 AM

Yup check the fuse for the blower motor first. Then I would go to the blower motor itself next. Fuses are in the glovebox behind a little trap door.

Edit: just saw you have the same car as me. It could be a multitude of issues w the system. Easiest thing to check is fuse first. Then the final stage resistor and the blower motor. There was a service bulletin out for the blower motor burning out due to leaking cowl cover but unless you have water on your pass side floor then I would rule out the leak. But that doesn't mean the motor couldn't have burnt up regardless

AWe90 · 05-30-2011, 08:41 PM

Quote:

Originally Posted by SMOKE EM IF U GOT EM!!

Yup check the fuse for the blower motor first. Then I would go to the blower motor itself next. Fuses are in the glovebox behind a little trap door.

Edit: just saw you have the same car as me. It could be a multitude of issues w the system. Easiest thing to check is fuse first. Then the final stage resistor and the blower motor. There was a service bulletin out for the blower motor burning out due to leaking cowl cover but unless you have water on your pass side floor then I would rule out the leak. But that doesn't mean the motor couldn't have burnt up regardless

cool. thanks for the heads up!

fdriller9 · 05-30-2011, 10:46 PM

Quote:

Originally Posted by SMOKE EM IF U GOT EM!!

Yup check the fuse for the blower motor first. Then I would go to the blower motor itself next. Fuses are in the glovebox behind a little trap door.

Edit: just saw you have the same car as me. It could be a multitude of issues w the system. Easiest thing to check is fuse first. Then the final stage resistor and the blower motor. There was a service bulletin out for the blower motor burning out due to leaking cowl cover but unless you have water on your pass side floor then I would rule out the leak. But that doesn't mean the motor couldn't have burnt up regardless

My blower motor failed because water got on it and my passenger floor was NEVER wet.

aesfah · 05-31-2011, 12:13 PM

Quote:

Originally Posted by *********

My blower motor failed because water got on it and my passenger floor was NEVER wet.

Same. Just had mine replaced under CPO warranty. Common problem w/our cars, unfortunately.

AWe90 · 06-03-2011, 08:26 PM

my car is out of warranty. anyone know how much this repair runs?

Alexm007 · 06-03-2011, 09:58 PM

1. Check fuses, easiest possible solution
2. If no fuses, theres this resistor thing that blows that you need a mechanic to replace. I forget what it's called...Load resistor, power resistor, shunt, or something funny. Happened to me dealer fixed for free.

Hope this helps...

djsolution · 06-04-2011, 12:22 AM

I had the same issue a few months back. i ended up ordering the blower motor from Tischer and replacing it myself. Not a difficult job, just a little awkward working in the passenger footwell. There's a good DIY writeup on here. The part was about $120 IIRC.

JPGOR · 06-06-2011, 05:48 PM

Hi Guys

I have a 320 d es and the blower motor has stopped working. Does anyone know how to determine if its a resistor or the full motor thats broke. Can you please give me a heads up as to where to source these parts etc,

Regards

JP

Alexm007 · 06-06-2011, 06:31 PM

I think for me it was all of a sudden the fan stopped working, the display stayed, the numbers changed, but there was no air movement. For me it was the "Final Stage Unit" FSU, the blower motor resistor thing. If it was all of a sudden, I'm guessing your problem is the same. If it happened over time maybe it's the blower. I heard my problem was common, from my SA.

djsolution · 06-06-2011, 11:13 PM

Here's a link to the DIY for the blower motor/resistor replacement. I used the part # listed in the thread and ordered from tischer bmw.

http://www.e90post.com/forums/showthread.php?t=464807

JPGOR · 06-07-2011, 02:58 PM

Quote:

Originally Posted by Alexm007

I think for me it was all of a sudden the fan stopped working, the display stayed, the numbers changed, but there was no air movement. For me it was the "Final Stage Unit" FSU, the blower motor resistor thing. If it was all of a sudden, I'm guessing your problem is the same. If it happened over time maybe it's the blower. I heard my problem was common, from my SA.

Many Thanks for the replies. Where is the best place to source the FSU. My stopped suddenly so i do believe that is the problem. Thanks again

johnny_boy · 07-06-2011, 03:27 AM

I am also having the same problem. Suddenly the fan stopped blowing, about a week ago. However, over the winter I've noticed that when the weather was cold the heater would make a cricket noise for the first 10 seconds or so and it goes away. I think that was the blower making that noise, now I thought about it more. Is that mean it was going bad over time, therefore most likely the blower is busted rather than the resistor things mentioned above? I've already replaced the fuse, but no luck.

AWe90 · 07-06-2011, 09:59 PM

I know the 'cricket' noise you speak of. Just had my fan replaced. Still makes the noise now and again.

JF0rd · 03-05-2013, 12:31 AM

Tonight, I was able to "revive" my blower motor with a little air tool oil on the shaft of the fan. I'm going to be on the lookout for a used on though.

6MTF80 · 05-31-2013, 09:51 AM

Quote:

Originally Posted by SMOKE EM IF U GOT EM!!

Yup check the fuse for the blower motor first. Then I would go to the blower motor itself next. Fuses are in the glovebox behind a little trap door.

Edit: just saw you have the same car as me. It could be a multitude of issues w the system. Easiest thing to check is fuse first. Then the final stage resistor and the blower motor. There was a service bulletin out for the blower motor burning out due to leaking cowl cover but unless you have water on your pass side floor then I would rule out the leak. But that doesn't mean the motor couldn't have burnt up regardless

Mine does leak, any suggestions on what to do? I'm gonna check it myself later as soon as I get the chance. Btw I already found the part on ECS Tuning for $96.68

Hisho335i · 07-01-2013, 06:53 PM

I have a 335i 2007 E90 and the inside blower is not working, with a multimeter there is no voltage coming to the motor or resistor (tried all setting high) checked all fuses. still no voltage coming on the Motor/resistor . Climate control panel all green lights and it functions normal . That happened after changing water pump/thermostat.
any ideas

modojojo · 07-01-2013, 07:44 PM

Quote:

Originally Posted by AWe90

my car is out of warranty. anyone know how much this repair runs?

Just had mine replaced on my 09 328. If you can, avoid the stealership on this one If possible. You can order a OEM blower motor online for between 140.00-170.00, the glove box has to be removed after that It's plug and play. It's only a 30-40 min job tops. My mechanic charged me 60.00 to put In.

modojojo · 07-01-2013, 07:51 PM

Quote:

Originally Posted by johnny_boy

I am also having the same problem. Suddenly the fan stopped blowing, about a week ago. However, over the winter I've noticed that when the weather was cold the heater would make a cricket noise for the first 10 seconds or so and it goes away. I think that was the blower making that noise, now I thought about it more. Is that mean it was going bad over time, therefore most likely the blower is busted rather than the resistor things mentioned above? I've already replaced the fuse, but no luck.

yeah once you hear that cricket noise coming from the vents, It's time to replace the blower motor before It stops on you completely. I played myself and waited and It died on me on the first 95 degree day

. Then I had to wait four more 90 degree days for the part to come.

edirtaynine · 07-01-2013, 07:54 PM

you're not missing much anyway. BMW a/c sucks. lol

Kayani_1 · 07-01-2013, 10:29 PM

Took my car in last week with this same issue. The BMW dealer said that the blower motor had gone bad. So they had to replace the blower motor and wiring associated with it. Since it was under CPO warranty it got fixed.

05-26-2011, 08:39 PM	#1
AWe90 Lieutenant 92 Rep 444 Posts Drives: E90 --> F10 Join Date: Mar 2011 Location: NEPA iTrader: (1)	AC/Heat fan not working on e90? My climate control fan is not working/blowing at all, although the LED screen tells me it is. Anyone know what's up? __________________ 2015 535i Xdrive M Sport (sold) 2021 Yukon XL SLT Premium
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05-27-2011, 07:47 AM	#2
RoundelM3 Major General 1834 Rep 6,989 Posts Drives: 15 F80 M3, 22 G01 X3 30i Join Date: Apr 2010 Location: Clayton, NC iTrader: (2) Garage List 2022 BMW X3 [9.83] 2015 BMW M3 [6.50]	Have you checked for a blown fuse yet? __________________ 2015 F80 ///M3 Sedan 7DCT Tanzanite, 2022 X3 sDrive30i 8AT Brooklyn Grey
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05-27-2011, 09:37 AM	#3
SMOKE EM IF U GOT EM!! Lieutenant Colonel 216 Rep 1,793 Posts Drives: 06' E90 330, 20' F97 X3m Join Date: Feb 2006 Location: L.I, NY iTrader: (1) Garage List 2006 330i SPORT [7.34]	Yup check the fuse for the blower motor first. Then I would go to the blower motor itself next. Fuses are in the glovebox behind a little trap door. Edit: just saw you have the same car as me. It could be a multitude of issues w the system. Easiest thing to check is fuse first. Then the final stage resistor and the blower motor. There was a service bulletin out for the blower motor burning out due to leaking cowl cover but unless you have water on your pass side floor then I would rule out the leak. But that doesn't mean the motor couldn't have burnt up regardless __________________ LIVE FAST..DRIVE FASTER!!
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06-03-2011, 08:26 PM	#7
AWe90 Lieutenant 92 Rep 444 Posts Drives: E90 --> F10 Join Date: Mar 2011 Location: NEPA iTrader: (1)	my car is out of warranty. anyone know how much this repair runs? __________________ 2015 535i Xdrive M Sport (sold) 2021 Yukon XL SLT Premium
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06-03-2011, 09:58 PM	#8
Alexm007 Second Lieutenant 20 Rep 220 Posts Drives: '19 G01 X3, 09 E70,07 E92 335i Join Date: Sep 2010 Location: Antarctica iTrader: (3)	1. Check fuses, easiest possible solution 2. If no fuses, theres this resistor thing that blows that you need a mechanic to replace. I forget what it's called...Load resistor, power resistor, shunt, or something funny. Happened to me dealer fixed for free. Hope this helps... __________________ Current: 2019 G01 X3 Before that: 2009 e70 X5 Before that: 2007 BMW 335i Coupe - ZSP
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06-04-2011, 12:22 AM	#9
djsolution Private 3 Rep 95 Posts Drives: 2006 E90 330i Join Date: Mar 2008 Location: Alexandria, VA iTrader: (0)	I had the same issue a few months back. i ended up ordering the blower motor from Tischer and replacing it myself. Not a difficult job, just a little awkward working in the passenger footwell. There's a good DIY writeup on here. The part was about $120 IIRC. __________________ E90 AW 330i Sport/Premium/Terra
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06-06-2011, 05:48 PM	#10
JPGOR New Member 3 Rep 5 Posts Drives: 2007 320D ES Join Date: Aug 2010 Location: IRELAND iTrader: (0)	blower motor issue E90 Hi Guys I have a 320 d es and the blower motor has stopped working. Does anyone know how to determine if its a resistor or the full motor thats broke. Can you please give me a heads up as to where to source these parts etc, Regards JP
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06-06-2011, 06:31 PM	#11
Alexm007 Second Lieutenant 20 Rep 220 Posts Drives: '19 G01 X3, 09 E70,07 E92 335i Join Date: Sep 2010 Location: Antarctica iTrader: (3)	I think for me it was all of a sudden the fan stopped working, the display stayed, the numbers changed, but there was no air movement. For me it was the "Final Stage Unit" FSU, the blower motor resistor thing. If it was all of a sudden, I'm guessing your problem is the same. If it happened over time maybe it's the blower. I heard my problem was common, from my SA. __________________ Current: 2019 G01 X3 Before that: 2009 e70 X5 Before that: 2007 BMW 335i Coupe - ZSP
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06-06-2011, 11:13 PM	#12
djsolution Private 3 Rep 95 Posts Drives: 2006 E90 330i Join Date: Mar 2008 Location: Alexandria, VA iTrader: (0)	Here's a link to the DIY for the blower motor/resistor replacement. I used the part # listed in the thread and ordered from tischer bmw. http://www.e90post.com/forums/showthread.php?t=464807 __________________ E90 AW 330i Sport/Premium/Terra
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07-06-2011, 03:27 AM	#14
johnny_boy Enlisted Member 9 Rep 36 Posts Drives: 2007 335i Join Date: Dec 2009 Location: Pacific Northwest iTrader: (0)	I am also having the same problem. Suddenly the fan stopped blowing, about a week ago. However, over the winter I've noticed that when the weather was cold the heater would make a cricket noise for the first 10 seconds or so and it goes away. I think that was the blower making that noise, now I thought about it more. Is that mean it was going bad over time, therefore most likely the blower is busted rather than the resistor things mentioned above? I've already replaced the fuse, but no luck. __________________ 2007 335i
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07-06-2011, 09:59 PM	#15
AWe90 Lieutenant 92 Rep 444 Posts Drives: E90 --> F10 Join Date: Mar 2011 Location: NEPA iTrader: (1)	I know the 'cricket' noise you speak of. Just had my fan replaced. Still makes the noise now and again. __________________ 2015 535i Xdrive M Sport (sold) 2021 Yukon XL SLT Premium
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03-05-2013, 12:31 AM	#16
JF0rd Enlisted Member 4 Rep 47 Posts Drives: 2007 328i Join Date: Sep 2010 Location: Ruston, LA iTrader: (1)	Tonight, I was able to "revive" my blower motor with a little air tool oil on the shaft of the fan. I'm going to be on the lookout for a used on though.
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07-01-2013, 06:53 PM	#18
Hisho335i New Member 0 Rep 14 Posts Drives: 335i Premium/Sport/Dinan Soft Join Date: Jul 2011 Location: Redondo Beach Ca iTrader: (0)	I have a 335i 2007 E90 and the inside blower is not working, with a multimeter there is no voltage coming to the motor or resistor (tried all setting high) checked all fuses. still no voltage coming on the Motor/resistor . Climate control panel all green lights and it functions normal . That happened after changing water pump/thermostat. any ideas
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07-01-2013, 07:54 PM	#21
edirtaynine Major General 81 Rep 6,092 Posts Drives: e92 Join Date: Mar 2011 Location: SoCal iTrader: (0)	you're not missing much anyway. BMW a/c sucks. lol __________________ e90post killed plastidip Just say no to painted stock wheels jm3as hooks it up
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07-01-2013, 10:29 PM	#22
Kayani_1 Lieutenant Colonel 81 Rep 1,656 Posts Drives: BMW E92/E60 Join Date: Oct 2009 Location: Houston iTrader: (1)	Took my car in last week with this same issue. The BMW dealer said that the blower motor had gone bad. So they had to replace the blower motor and wiring associated with it. Since it was under CPO warranty it got fixed. __________________ nickname"BAD 3",MHD E85 tune,RennArt catback non-resonated exhaust,VRSF Downpipes, VRSF 7"FMIC,VRSF stock side inlets,SSQV BOV,ECS CP,M-performance alcantara steering,retrofit M3 paddle shifters,Alpina B3 tranny flash,AFE power seal CAI,LED angels,ST Coilovers,M3 upper/lower control arms,E93 M3 Front Swaybar ,235/35/19x9 ,275/30/19x9.5. M sport bumpers, CF diffuser. When in doubt..flat out.
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