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2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums General 5-Series Sedan and Wagon (F10 / F11) Forum AC Blower Turns Off -
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      04-20-2020, 12:48 PM   #1
aebas54
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AC Blower Turns Off -

535i 2013

I have been experiencing an intermittent problem with my vehicles Climate control.

When I turn the AC on past the third level - max it will shut off. It will resume if I leave it off for a few minute but has to be below the third level. (this happens regardless of AC, Defrost or heat)

I recently changed the Fan Motor Regulator/Resistor and that did not help (still experiencing the same problem).

I am considering changing the blower motor next but I am unsure if that is the problem as the motor does turn on and works partially.

Is there a way to bench test the regulator with a multi meter?

What should be the next step.


Thank you all in advance for all the help!!
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      04-20-2020, 01:01 PM   #2
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What is the condition of your battery and charging system? Any battery, charge level, or "discharge while stopped" messages on your cluster?

The IBS can make high loads like the blower fan and heated seats shut off or be limited in speed if your battery is weak.

If you have replaced your battery, was it registered?
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      04-20-2020, 01:30 PM   #3
aebas54
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93k on the vehicle with original battery. No messages on dash and everything else works.

Should I will go get the battery tested? Or can I just take the voltage and identify like that?
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      04-25-2020, 12:33 PM   #4
aebas54
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Just got the battery tested and it is bad.

QUESTION

If I buy an exact fit battery with the exact specs will I still have to register?


Thank you
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      04-25-2020, 05:04 PM   #5
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Quote:
Originally Posted by aebas54 View Post
Just got the battery tested and it is bad.

QUESTION

If I buy an exact fit battery with the exact specs will I still have to register?


Thank you
Yes. The IBS needs to know the condition of the battery; i.e. how many hours on it, age, state of charge... things of that nature.
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      04-25-2020, 05:52 PM   #6
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Quote:
Originally Posted by aebas54 View Post
Just got the battery tested and it is bad.

QUESTION

If I buy an exact fit battery with the exact specs will I still have to register?


Thank you
Interstate battery can register it. Replaced a battery in my E60 just a few weeks ago and they did it all. If your changing the type of battery then it needs dealer attention.
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      05-17-2020, 09:17 AM   #7
aebas54
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Okay, So far I have replaced the battery and registered it with foxwell scanner, replaced the ac regulator and the ac is still turning off after a few minutes of it operating at high fan speed.


I am thinking of replacing the motor but when it runs it runs strong. So I am stumped.

Please help.
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      05-17-2020, 11:15 AM   #8
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Quote:
Originally Posted by aebas54 View Post
Okay, So far I have replaced the battery and registered it with foxwell scanner, replaced the ac regulator and the ac is still turning off after a few minutes of it operating at high fan speed.


I am thinking of replacing the motor but when it runs it runs strong. So I am stumped.

Please help.
Have you checked the "freon" charge (I know it's not "Freon")?
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      05-17-2020, 05:46 PM   #9
aebas54
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Will stop working with ac on, ac off and heat on as well. I have not checked because of this.
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      05-17-2020, 06:07 PM   #10
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Quote:
Originally Posted by aebas54 View Post
Will stop working with ac on, ac off and heat on as well. I have not checked because of this.
Low charge will cause the system to shut down for self preservation.
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      05-18-2020, 08:55 AM   #11
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Quote:
Originally Posted by ezaircon4jc View Post
Low charge will cause the system to shut down for self preservation.
Not by shutting down the blower, as far as I know. The compressor just kicks off.
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      05-18-2020, 12:05 PM   #12
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Quote:
Originally Posted by Surly73 View Post
Not by shutting down the blower, as far as I know. The compressor just kicks off.
This was my experience when my AC ran out of refrigerant. The interior blower continued, but there was nothing cold coming out. In fact, prior to complete cooling failure, while there was still perhaps bit of refrigerant in the system, I could hear a loud hissing sound from inside the cabin when the compressor kicked in and it had almost nothing to compress.
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      05-20-2020, 05:52 PM   #13
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The blower shuts off regardless if the AC is on or off. I have tried it with ac off, heat on and ac on and it does the same thing. Shuts off after a few minutes of running high. Oh, btw AC is cold.
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      08-07-2020, 08:56 AM   #14
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Quote:
Originally Posted by aebas54 View Post
535i 2013

I have been experiencing an intermittent problem with my vehicles Climate control.

When I turn the AC on past the third level - max it will shut off. It will resume if I leave it off for a few minute but has to be below the third level. (this happens regardless of AC, Defrost or heat)

I recently changed the Fan Motor Regulator/Resistor and that did not help (still experiencing the same problem).

I am considering changing the blower motor next but I am unsure if that is the problem as the motor does turn on and works partially.

Is there a way to bench test the regulator with a multi meter?

What should be the next step.


Thank you all in advance for all the help!!
Hi ,

I am facing an issue with my F10-530D where in the blower speed reduces automatically.
At start up the blower speed is proper , but it reduces after couple of seconds.
Is any one facing the same issue ? Do you guys have any solution for the same ?

THanks in Advance
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      08-15-2020, 10:10 AM   #15
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Did you get this fixed
I started experiencing noise with my blower motor
I opened cover under the hood come to find out filter on the box was detrained and bunch off leafs and other crap was stuck.
I took motor out clean everything replaced filter with coarse pond filter everything is back to normal
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      12-30-2021, 09:33 AM   #16
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Solved

Quote:
Originally Posted by dhazarik View Post
Hi ,

I am facing an issue with my F10-530D where in the blower speed reduces automatically.
At start up the blower speed is proper , but it reduces after couple of seconds.
Is any one facing the same issue ? Do you guys have any solution for the same ?

THanks in Advance
I've just had this same problem. Turned the AUTO mode off and then had windscreen setting (full power) - it would run and then slowly roll back to off. After some time, it would then come back on full only to then roll back again.
I took the blower assembly out and changed the control module on the side, but that had no effect.
I then read someone changed the fan and that solved the problem. I was at first a little unsure about this, as the fan seemed to run fine at full power, so why would that be a problem? When I compared the new motor assembly with the old one, it was obvious that the old one seemed stiffer to rotate. My guess is that this extra resistance caused a current anomaly or voltage drop that the control unit saw and then rolled the power back to avoid burn out.
Dropped the new motor into the blower assembly, cleaned it all out and popped it back in and it now works as new. In fact, there appears to be a performance increase, or at least restoration.
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