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Small Fan Noise

fan

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24 replies to this topic

#1 ONLINE   ptjones

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Posted 23 February 2016 - 06:21 PM

I have been hearing a small fan noise like the bearing is going out in the MFT area and I had the electronics person at FORD listen to it. He said their are no fans in MFT and radio. He said their could be a small fan in the climate control system to monitor temp.  I thought I would post this to see if anyone had any ideas.  ;)

 

Paul









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#2 OFFLINE   jestevens

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Posted 24 February 2016 - 09:51 AM

I've never seen the parts or any circuit diagrams but I always figured that was a fan for the on board computer that controls the MFT., because it always seems to be on in my 2013 SEL whether I have "climate" turned on or off.  The only other thing that gets that hot would be an amplifier or bass speaker?  Does this car even have a separate subwoofer?  If it does it must be under one of the seats.


Edited by jestevens, 24 February 2016 - 09:52 AM.


#3 OFFLINE   Plus 3 Golfer

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Posted 24 February 2016 - 10:18 AM

Paul, do you hear the noise with the climate control off?  The humidity and temperature sensor has a fan that should only be powered when the blower motor relay is energized.  Also, you could try pulling fuse F45 which supplies power to the fan. 

 

In-Vehicle Temperature And Humidity Sensor

The in-vehicle temperature and humidity sensor contains a thermistor and a sensing element which separately measures the in-vehicle air temperature and the humidity, then sends those readings to the HVAC control module to adjust the actuator doors. The in-vehicle temperature and humidity sensor has an electric fan within the sensor that draws in-vehicle air across the two sensing elements. If the vehicle cabin becomes too humid the HVAC control module adjusts the air inlet door to allow more fresh air. When the humidity level drops, it adjusts back to recirculated air. 


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#4 ONLINE   ptjones

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Posted 24 February 2016 - 02:07 PM

Paul, do you hear the noise with the climate control off?  The humidity and temperature sensor has a fan that should only be powered when the blower motor relay is energized.  Also, you could try pulling fuse F45 which supplies power to the fan. 

 

In-Vehicle Temperature And Humidity Sensor

The in-vehicle temperature and humidity sensor contains a thermistor and a sensing element which separately measures the in-vehicle air temperature and the humidity, then sends those readings to the HVAC control module to adjust the actuator doors. The in-vehicle temperature and humidity sensor has an electric fan within the sensor that draws in-vehicle air across the two sensing elements. If the vehicle cabin becomes too humid the HVAC control module adjusts the air inlet door to allow more fresh air. When the humidity level drops, it adjusts back to recirculated air. 

This fan runs all the time and pulling fuses would isolate witch circuit it is on. When I get a chance I will look at the service manual to see what's in the console. ;) 

 

Paul 



#5 ONLINE   ptjones

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Posted 10 March 2016 - 11:40 AM

My Dealer figured out what the noise is and has ordered part. It is the inverter for the 120VAC outlet apparently has fan in it. :) 

 

Paul 



#6 OFFLINE   RobMax

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Posted 27 March 2016 - 04:41 PM

A front seat power outlet? I take it that's an SEL option.

Was there something plugged into that outlet? If not, interesting there would be a fan turned on to cool it.



#7 ONLINE   ptjones

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Posted 28 March 2016 - 08:45 AM

A front seat power outlet? I take it that's an SEL option.

Was there something plugged into that outlet? If not, interesting there would be a fan turned on to cool it.

It's the power inverter for 120V on the back of arm rest near the floor. Apparently it runs all the time which seams unnecessary. They have the part, but need time to install it. I will try to take a pic of it when I get it replaced. :) 

 

Paul 



#8 OFFLINE   RobMax

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Posted 28 March 2016 - 11:00 AM

It's the power inverter for 120V on the back of arm rest near the floor. Apparently it runs all the time which seams unnecessary. They have the part, but need time to install it. I will try to take a pic of it when I get it replaced. :)

 

Paul 

 

Ah so the typical location. I figured since you thought it was the MFT that the fan noise was up front in the dash. So is the fan located in the console somewhere near the outlet then?



#9 ONLINE   ptjones

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Posted 28 March 2016 - 01:50 PM

Ah so the typical location. I figured since you thought it was the MFT that the fan noise was up front in the dash. So is the fan located in the console somewhere near the outlet then?

No it is back from the shifter under center console. :) 

 

Paul 



#10 OFFLINE   RobMax

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Posted 28 March 2016 - 08:31 PM

No it is back from the shifter under center console. :)

 

Paul 

 

LOL, you need to get your ears directionally calibrated. It's a pain trying to figure out where noises come from, right?

You should've seen me this weekend banging the dash near my radio controls with my head against it trying to figure out where the rattle was. 

I finally found it and was able to fix it thanks to a youtube video showing how to take everything apart in order.


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#11 OFFLINE   dicko

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Posted 29 March 2016 - 12:24 AM

WTF is an MFT??



#12 OFFLINE   markd

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Posted 29 March 2016 - 05:15 AM

My Ford Touch

#13 ONLINE   ptjones

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Posted 31 March 2016 - 09:26 AM

Here is a pic of CMAX 12v to 110vac inverter that was making fan noise. Unfortunately the new inverter started out making more noise than my old one. One of the fan blades was hitting something and almost stopping, but after a few starts it wore down so it isn't making as much noise, still not right. To make sure I listened to a new Fusion Hybrid and it didn't make any noise so FORD ordered another new one. ;)

Paul

Edited by ptjones, 01 April 2016 - 09:14 AM.


#14 OFFLINE   Louder North

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Posted 31 March 2016 - 09:21 PM

 

Here is a pic of CMAX 12v to 110vac inverter that was making fan noise. Unfortunately the new inverter started out making more noise than my old one. One of the fan blades was hitting something and almost stopping, but after a few starts it whore down so it isn't making as much noise, still not right.  To make sure I listened to a new Fusion Hybrid and it didn't make any noise so FORD ordered another new one. ;)

 
Paul

 

Careful with the language there Paul!  ;)



#15 ONLINE   ptjones

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Posted 01 April 2016 - 09:17 AM

Careful with the language there Paul!  ;)

Thanks, My fingers can't spell. LOL

Paul

#16 ONLINE   ptjones

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Posted 01 April 2016 - 04:54 PM

I decided to remove the fuse to make the sound go away.  It turns out there are two fuses F24 and F32 and I took them out separately and the fan noise didn't go away. Darn! ;)  Back to square one. :sad:  :headscratch:  :shrug:

 

Paul



#17 OFFLINE   Plus 3 Golfer

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Posted 01 April 2016 - 05:28 PM

I decided to remove the fuse to make the sound go away.  It turns out there are two fuses F24 and F32 and I took them out separately and the fan noise didn't go away. Darn! ;)  Back to square one. :sad:  :headscratch:  :shrug:

 

Paul

Rear Junction Box not front?



#18 ONLINE   ptjones

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Posted 02 April 2016 - 07:33 AM

Rear Junction Box not front?

That's right, rear drivers side, just for grins I'm going to take both fuses out at the same time to see what happens. then I'm going to try climate control fuses. ;)

 

Paul



#19 ONLINE   ptjones

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Posted 03 April 2016 - 10:48 AM

Well I figured what system the noise is coming from, "Heating control head (manual A/C), Climate control module" OM page 273 fuse #71 10 Amp. under glove box.   So I'll talk to Dealer tomorrow to see if they can figure out what to do. ;)  



#20 ONLINE   ptjones

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Posted 05 April 2016 - 01:10 PM

Took MADMAX in today and they  ordered Climate temp sensor module which includes fan, should have tomorrow. :)

 

Paul








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