Blowing Hot Air All The Time?

[ATB]

Hi all

 

Long time no post - long story.

 

Anyway - have searched the forum to no avail - can anyone suggest why my 1.9 TDi is now blowing hot air out of the vents all the time, regardless of what the heater control is set to?

 

Is something 'stuck' in the engine bay that I can unstick with a large hammer or other suitably delicate instrument?

 

Any help gratefully received...

 

Thanks

ATB

[seatkid]

Does it have Climate Control (electronic) or are the heater controls manual dials?

[mumof4]

Hmm...wouldnt it be electronic CC as it is a 2001 model MKII?

[ATB]

Hmm...wouldnt it be electronic CC as it is a 2001 model MKII?

Sorry all - Mo4 is right, it's not electronic CC - just the usual hot/cold dial on the left, fan speed in the middle and direction control on the right.

 

Thanks

ATB

[Guest wolfie]

Hmm...wouldnt it be electronic CC as it is a 2001 model MKII?

Sorry all - Mo4 is right, it's not electronic CC - just the usual hot/cold dial on the left, fan speed in the middle and direction control on the right.

 

Thanks

ATB

 

actually mo4 is wrong! she said wouldnt it be, meaning that it should be CC due to the age of the vehicle!

 

check the control cables are moving?

[mumof4]

yep..wolfie is right, i was wrong...but i dont understand why you have the dials and not electronic in a 2001 model??

[seatkid]

As wolfie says check for detached bowden cables either at dial end or heater flap end. Also small possibility the cable has snapped.

[ATB]

As wolfie says check for detached bowden cables either at dial end or heater flap end. Also small possibility the cable has snapped.

 

Well, as to why it's got dials not electronic CC - no idea - it's only a zetec, not a ghia - would that be why?

 

It seems to have rectified itself today - stuck flap maybe?

 

On to my next problem now - see seperate post!

[richyrich]

I thought the flaps and things on this model(same as mine) are moved by little servo motors. Am i mistaken?

[seatkid]

Am i mistaken?

 

Yes :blink:

 

 

The servo motors come with the electronic climate control variants.

[ATB]

Am i mistaken?

 

Yes :blink:

 

 

The servo motors come with the electronic climate control variants.

 

I thought that too - I never ever noticed any cable 'resistance' since I owned the car, unlike others I've had.

[seatkid]

At this point I should dive into the TIS and check my facts....but its a Friday night, I've just had an arguement, and I have a bottle of wine to finish..... :blink:

[big_kev]

I've just had an arguement, and I have a bottle of wine to finish..... :blink:

 

When you finish the wine....hit her with the bottle..you know it makes sense.

 

 

 

p.s. ever see the film "strangers on a train".

Edited July 6, 2007 by big_kev

[mumof4]

Thats if she gives him time to finish the wine before clouting him with a frying pan.

[midhertsgalaxy]

I too have a 2001 zetec, but the 2,3 petrol model. I had the same prob a few weeks ago. Also the AC and aux heating had stopped working and the direction control on the heater. Infact the whole panel was dead apart from the fan switch. An earlier topic on this forum said that the lads on the back of the controlpanel work loose. A flat bladed scrwedriver behind the panel facia removed the facia. then 4 tork screws got the panel out. The leads did not apper to be loose, but lo and behold, I took them of, put them on again and now all is working fine. I also did not have to remove the radio as ws suggested by a previous member. It may be as simple as that

[brunopatch]

Had a similar problem when I had an Espace (before I was educated!!), we went to France and boy was it hot, then found when I got home that the hot/cold selector had jumped off the dog teeth so it showed cold when it was actually still on hot. Had to take the dash off which was a bit fiddly but I was able to re-seat the selector and could cool down again.

[magpye]

Hi,

 

Thanks to the last post (midhertsgalaxy), I also had a problem with the panel - the heater was stuck on cold regardless of the dial and the illumination of the panel was not working. I couldn't find a fuse for the unit in the fuse panel, so took the heater panel out as described above, took the connectors off and back on again, and reassembled.

 

Sure enough, it all works again now.

 

Thanks for the advice.

 

FYI my Galaxy is a 2000 1.9 TDI model.

 

:lol:

[Kieran McCarthy]

This post is almost an echo of magpye's.

 

 

My heat was also stuck on. All the other controls were working (well apart from the AC but that's kai-boshed and even that was lighting up.) but the the hot was intermittently staying on in an attempt to cook the passengers.

 

Thanks to midhertsgalaxy I was able to prise off the facia as he says and remove the 4 tork screws and remove the control unit.

I wasn't able to detach the wires at the back but made sure they were fully seated and returned everything the way it was.

 

Result: the heat worked fine when tested. As the problem was intermittent and I didn't actually change much I have my fingers crossed that it's sorted.

 

 

However one word of warning.

I had my flat screwdriver embedded in the fascia and was levering pretty hard.

The fascia was flexing and bending.

I had slipped another one in alongside it.

I was at the point of going to give it one hard shove to either get it off or break the bloody thing.

when out of cautiousness I dug out my TIS Cd to check could this really be the way to go.

 

From this I realised that the bit of fascia to prise out is the black bit directly around the heater controls. ie the one with 3 circles cut out of it.

I was prising away at the silver bit that surrounds all the buttons and radio and heater controls.

 

Just a word of warning for the destructive types like myself.

[daddyfixit]

i had this happen 2 summers ago !!!!!!!!! no cool air, no air con either ,nor re-circulate;

 

keys out of ignition to avoid pyrotechics.

 

remove the heater control panel (torx screws behind pull-off black fascia) and remove the wiring multi plug.

 

put ignition on briefly, car is now looking for the disconnected component, switch ignition off.

 

refit wiring loom,re-assemble and retry....................the unit will self test and reset itself .

 

try that you now have cold and hot.

[phb@gearbulk.com]

I too have a 2001 zetec, but the 2,3 petrol model. I had the same prob a few weeks ago. Also the AC and aux heating had stopped working and the direction control on the heater. Infact the whole panel was dead apart from the fan switch. An earlier topic on this forum said that the lads on the back of the controlpanel work loose. A flat bladed scrwedriver behind the panel facia removed the facia. then 4 tork screws got the panel out. The leads did not apper to be loose, but lo and behold, I took them of, put them on again and now all is working fine. I also did not have to remove the radio as ws suggested by a previous member. It may be as simple as that

I have a 2005 Zetec, have exactly this problem, which in my case is VERY clearly a bad contact somewhere because the lights/buttons had been flickering in potholes for some time, until eventually going dead (in an Extra Pothole I suppose - common in Surrey).

I have done the above procedure, can confirm indeed the 'dial' controls ARE transmitted electronically, there are no cables i.e. there must be servo-motors doing the action somewhere "down there".

But alas, having re-secured all the contacts I continue with my dry sauna and dead panel.

There are three sockets behind this control panel:

center one is clearly the Fan controls, +12VdC incoming on one, and then distributed to pin 1 or 2 or 3...by the fan switch. That's alive and well.

Then there is a "SCART"-like multipin socket to the left (behind the temperature control), and a two-pin (heavier appearance) socket to the right, behind the 'direction' control.

My simpleton expectation would be that the two-pin connection would convey +12VdC and Earth to this (fully electronic, two PCBs) control panel however they are dead even with ignition on / engine running / sidelights on/off (the lighting of this panel is governed by the external lights control like the rest of panel).

This two-pin socket with respective (dead) lead disappears into the forest of cables leading into the fusebox / relay panels in drivers footwell where I assume the loose connection / relay is... am about to give up and surrender to a main Dealer unless someone out there shouts "WAIT"...

[Lyle Waters]

They are controlled by servo's. Thats why the direction dial takes a few seconds to change from screen to front vents.

[lewlog]

I too have a 2001 zetec, but the 2,3 petrol model. I had the same prob a few weeks ago. Also the AC and aux heating had stopped working and the direction control on the heater. Infact the whole panel was dead apart from the fan switch. An earlier topic on this forum said that the lads on the back of the controlpanel work loose. A flat bladed scrwedriver behind the panel facia removed the facia. then 4 tork screws got the panel out. The leads did not apper to be loose, but lo and behold, I took them of, put them on again and now all is working fine. I also did not have to remove the radio as ws suggested by a previous member. It may be as simple as that

 

I would like to give you a huge thank you for your instructions on removing and replacing the heater control panel. Ours was causing quite a big problem by constantly blowing fuse 32 much like yours sounds it was. Thank goodness, due to the purchase we made on eBay and due to your brilliant instructions, we were able to remove and replace the problematic control panel!

 

Thanks a lot!

[lewlog]

i had this happen 2 summers ago !!!!!!!!! no cool air, no air con either ,nor re-circulate;

 

keys out of ignition to avoid pyrotechics.

 

remove the heater control panel (torx screws behind pull-off black fascia) and remove the wiring multi plug.

 

put ignition on briefly, car is now looking for the disconnected component, switch ignition off.

 

refit wiring loom,re-assemble and retry....................the unit will self test and reset itself .

 

try that you now have cold and hot.

 

You legend! Thanks to your wonderful helpful instructions and the part we purchased on eBay, we were able to remove our problematic heater control panel. It was frequently blowing fuse 32 and thanks to you, we were able to get it out and replaced!

Brilliant - thank you!

[daddyfixit]

i had this happen 2 summers ago !!!!!!!!! no cool air, no air con either ,nor re-circulate;

 

keys out of ignition to avoid pyrotechics.

 

remove the heater control panel (torx screws behind pull-off black fascia) and remove the wiring multi plug.

 

put ignition on briefly, car is now looking for the disconnected component, switch ignition off.

 

refit wiring loom,re-assemble and retry....................the unit will self test and reset itself .

 

try that you now have cold and hot.

 

You legend! Thanks to your wonderful helpful instructions and the part we purchased on eBay, we were able to remove our problematic heater control panel. It was frequently blowing fuse 32 and thanks to you, we were able to get it out and replaced!

Brilliant - thank you!

"legend"

 

must show that to my mrs later, as she says i am a bad anorak !!!! i tend to spend time on different forums putting stuff on----she says it keeps me occupied, i say it keeps the kids away from me !!!