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BA XT Heater stuck on full. AC/Fan controls not working. 

 

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 Post subject: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Wed Feb 24, 2021 6:25 pm 
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Age: 46

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Joined: 24th Feb 2021

Ride: BA XT

Location: Melbourne
VIC, Australia

G'day fellow enthusiasts,

Got a puzzling issue here really struggling with and need some expert advice. 05 BA XT Heater is stuck on full bore and cannot be adjusted.

Control knobs do not respond to any press or swivel along with several buttons (pictured below) and no display on LCD when pressed or turned.

Lights on the buttons do illuminate when lights turned on.

Initially thought it was faulty control buttons/knobs so I swapped them out for a good set and same issue.

Please see pic, RED circled are not responsive at all. All other buttons work.
Image

This a HIM mixer issue?

Cheers for any help.
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 Post subject: Re: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Sat Feb 27, 2021 11:37 pm 
Parts Gopher
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Age: 43

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Joined: 31st Oct 2016

Ride: AUII Fairmont- Tickford enhanced

Location: Freezer
TAS, Australia

Faulty unit by the sounds of it. Swap it with another ICC unit is all you can do I think.
Check fuses obviously but likely the unit has died.

Hopefully it hasn't also broken the selector shaft in the dash...
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 Post subject: Re: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Sun Feb 28, 2021 1:05 am 
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 Post subject: Re: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Sun Feb 28, 2021 1:26 pm 
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Age: 46

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Thanks for the suggestions.

Dash pulled and was the HIM module. Bit of a fire inside.

Image
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 Post subject: Re: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Sun Feb 28, 2021 9:36 pm 
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cbuzz wrote:
Thanks for the suggestions.

Dash pulled and was the HIM module. Bit of a fire inside.

Image




WOW! :shock:


good thing you pulled it when you did.
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 Post subject: Re: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Fri Mar 05, 2021 4:44 pm 
Parts Gopher
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I agree... WOW ... very lucky not to have cremated the car!

Scary thought, you're not the first person to go through this. I've read many threads on faulty ICC's.
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 Post subject: Re: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Fri Mar 05, 2021 9:09 pm 
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Rust Belt wrote:
I agree... WOW ... very lucky not to have cremated the car!

Scary thought, you're not the first person to go through this. I've read many threads on faulty ICC's.


ummm they mentioned HIM not ICC or are we talking crossed lines here??
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 Post subject: Re: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Sun Mar 07, 2021 10:18 pm 
Parts Gopher
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I was referring to the whole unit.
It comes out as one unit... & they have a reputation for faults.
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 Post subject: Re: BA XT Heater stuck on full. AC/Fan controls not working.
Posted: Mon Mar 08, 2021 8:08 am 
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Rust Belt wrote:
I was referring to the whole unit.
It comes out as one unit... & they have a reputation for faults.



HIM module is separate to the ICC. ICC is in front of the heater/aircon unit where as the HIM is to the passenger side of the centre vents & to the right of the fan motor. so about where the right edge of the glovebox is.
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