Climate Control Bonkers

[Irish Paddy]

Hi all, it's been a while but I'm back. Now with a 2008 Mondeo 1.8 TDCi saloon....nice car, but -

Only bought it a few weeks ago and now the weather has started to warm up I notice that in fact the climate control is stuck on hot, and it's impossible to change the direction of airflow - at the moment it's stuck directed towards the face level front dash vents. I strongly suspect the airflow flaps are not moving since I can hear no sounds out of them. The blower motor seems to be working normally as I can hear it and can vary its' speed using the control panel. It has the EATC control interface, part number AS7T18C612AB. I ran the on-board diagnostic procedure which threw back 4 faults:

 

9081 Circuit of left-hand temperature control flap actuator faulty

9082 Circuit of right-hand temperature control flap actuator faulty

9083 Fault in the circuit of the air recirculation flap actuator

9086 Fault in circuit of actuator for air distribution flap

 

Seems there is a system-wide fault somewhere. The panel itself seems to be working, at least the display part is. It responds as expected when I change selection, e.g. if I select footwell heat it lights up the correct symbols but of course the airflow does not change.

 

Had a quick look this morning and seemingly have to take a lot of trim off just to look at the actuator motors or access their wiring. Anyone know or suspect a likely culprit here as to where I should be looking? Really don't want to start disassembling the whole dash if I don't have to.

 

Cheers!

[Irish Paddy]

I end up answering my own question.....

The EATC control interface was faulty. Despite having the appearance that it was functioning correctly, I picked up a second hand replacement and all is well now.

[FatHead1979]

9 hours ago, Irish Paddy said:

I end up answering my own question.....

The EATC control interface was faulty. Despite having the appearance that it was functioning correctly, I picked up a second hand replacement and all is well now.

Hopefully not too expensive to replace, fair play for posting back with a resolution as it might help someone else someday.

[pragmatix]

22 hours ago, Irish Paddy said:

I end up answering my own question.....

The EATC control interface was faulty. Despite having the appearance that it was functioning correctly, I picked up a second hand replacement and all is well now.

Great glad your sorted, thanks for posting the answer it may help someone else.

[rapier99]

hi

 

great post

I have my first Mondeo purchased last week and its stuck on hot with same error codes

 

can I ask did your cooled seats work and where did u purchase replacement unit and cost

 

many thanks again

[FatHead1979]

On 4/21/2019 at 7:23 PM, rapier99 said:

hi

 

great post

I have my first Mondeo purchased last week and its stuck on hot with same error codes

 

can I ask did your cooled seats work and where did u purchase replacement unit and cost

 

many thanks again

I've found "UK parts gateway" to be especially useful for used parts.

[stevewil63]

Hi,

Forgive me for the probably dumb question but if you dont know, you dont know,

The control interface you changed, is that the control panel that holds the adjustment buttons on the dash or is it a separate interface hidden some where?