Heater stuck on windscreen setting

Myredrangey · May 3, 2015

Hi all,

As the title says, no matter where I set the heater controls the air is directed to the windscreen.
Could it be the control box itself or a motor gone? If anyone could give me some pointers on how to diagnose the problem that would be great...

Thanks in advance.

( 1998 P38 4.0l )

mickwall · May 3, 2015

Do you have the "book" symbol on the control unit? Sounds like a stuck distribution servo motor. Diagnostics would confirm.

biggeeeee · May 3, 2015

Or stuck flaps, themselves.
Just cured this problem on mine.

Myredrangey · May 3, 2015

Yes I do have the book symbol, the Ac does not work so I thought that is what was causing it.
I guess the distribution servo motor won't be easy to get to and check..what code readers suit the car best?

Bigeeeee - does the dashboard net to come out to check the flaps operation - hope not, had it out to do the heater matrix o rings a couple of years ago.

wammers · May 3, 2015

biggeeeee said:
Or stuck flaps, themselves.
Just cured this problem on mine.

When the flaps get suck together a sponge soaked in Dettol works wonders.

mickwall · May 3, 2015

The best is a nanocom evolution. Not cheap but will connect to the cars systems. Where abouts are you someone maybe near that could help you out

biggeeeee · May 3, 2015

wammers said:
When the flaps get suck together a sponge soaked in Dettol works wonders.

OOOOOOOOOooo, nippy though!
I used silicone spray on mine, nice and moist now and they open and shut on demand now

Datatek · May 3, 2015

Myredrangey said:
Yes I do have the book symbol, the Ac does not work so I thought that is what was causing it.
I guess the distribution servo motor won't be easy to get to and check..what code readers suit the car best?

Bigeeeee - does the dashboard net to come out to check the flaps operation - hope not, had it out to do the heater matrix o rings a couple of years ago.

Nanocom is the best.
Lots of info on blend motor problems if you do a search.

fanatic · May 3, 2015

biggeeeee said:
OOOOOOOOOooo, nippy though!
I used silicone spray on mine, nice and moist now and they open and shut on demand now

non stick?

Myredrangey · May 3, 2015

Thanks all, I'm in high wycombe, bucks btw.

Now to research blend motors! &#55357;&#56842;

biggeeeee · May 3, 2015

Myredrangey said:
Yes I do have the book symbol, the Ac does not work so I thought that is what was causing it.
I guess the distribution servo motor won't be easy to get to and check..what code readers suit the car best?

Bigeeeee - does the dashboard net to come out to check the flaps operation - hope not, had it out to do the heater matrix o rings a couple of years ago.

Nanocom diagnosed it for me.
Don;t need the dash out, plenty of info on here and other sites

Grrrrrr · May 4, 2015

Myredrangey said:
Thanks all, I'm in high wycombe, bucks btw.

Now to research blend motors! ��

I'm in Bucks with a Nanocom if you want to pop over.

Heater stuck on windscreen setting

Myredrangey

New Member

mickwall

Active Member

biggeeeee

Retired - Living the dream

Myredrangey

New Member

wammers

No longer with us, RIP

mickwall

Active Member

biggeeeee

Retired - Living the dream

Datatek

Well-Known Member

fanatic

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Myredrangey

New Member

biggeeeee

Retired - Living the dream

Grrrrrr

Technician, Bodgit & Scarper Ltd

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