Climate control sensor and fan

MikeT · Post by **MikeT** » 12 Jul 2007, 17:48

I thought I'd take a look at the interior temperature sensor and found the fan isn't working. Whenever I turn the ignition on the fan blades rotate about 20 degrees and that's it.

Is it supposed to run with the ignition on or only when certain conditions prevail?

Stempy · Post by **Stempy** » 12 Jul 2007, 18:27

Mine seems to run all the time, can you check there is a voltage supply, that would prove it out.

MikeT · Post by **MikeT** » 12 Jul 2007, 18:40

I tried disconnecting the motor but the connector is way back inside the radio hole and there's no way I could get my meter probes in there, IF I can disconnect the plug

Post by **admiral51** » 12 Jul 2007, 18:45

mine runs all the time as soon as engine is started sometimes sounds like a cassette tape being fast forwarded
i have read somewhere on the forum about it as it can cause all sorts of electrical probs but cant seem to find it now

colin

found something here mike
http://www.frenchcarforum.co.uk/forum/v ... rature+fan

MikeT · Post by **MikeT** » 12 Jul 2007, 19:33

Those posts tell me these fans can fail but no-one says they've managed to remove one or how.

I wanted to remove the fan motor to test/repair it indoors but I can't pull the plug out - can't even see it

I'll try probing for voltage tomorrow.

Post by **admiral51** » 12 Jul 2007, 20:09

mike
just looked through my BOL and it shows that the centre vents above clock clip out and there are two screws one top right one bottom left
this then pulls out attatched too lots of wires/plugs one of these is for the fan/sensor
not sure if rest of dash comes out first as it is halfway through fascia removal process
hope this is of some help
colin

MikeT · Post by **MikeT** » 12 Jul 2007, 20:17

Yeah, may have to do a little more dismantling to get at this - it's just odd that all the other switches and even the clock can be removed without any other work, I thought I was missing something.

Thanks.

Post by **admiral51** » 12 Jul 2007, 20:31

just had a go at mine and the whole vent assembly including clock and switches appear to be one piece and is overlapped by dashboard assembly

not sure if glovebox/radio were removed whether you would gain more access unless you are prepared to bend it around overlapped piece.my guess this could leave you with a bit of a rattle

sorry cant be more helpful

colin

Post by **admiral51** » 12 Jul 2007, 20:38

just had another look at BOL and it seems the piece stopping vent unit coming out is the switch panel.book shows it with steering wheel off but have seen on here that you can get instrument cluster out without removing steering wheel and you need switch panel out before instrument cluster comes out
mind if you go that far you just as well take instrument cluster out and replace all bulbs cos you know what would happen as soon as it went back together....... it is a citroen

MikeT · Post by **MikeT** » 12 Jul 2007, 20:40

admiral51 wrote:...cant be more helpful

colin

You can say that again!!! I certainly didn't expect you to go and try it out on your car to experiment! Thank you very much for that Colin. Please don't try anything else like that on my behalf, I'd hate you to get a rattle or squeak now!

Post by **admiral51** » 12 Jul 2007, 20:51

mike no worries just took vent covers off so i could see for myself when i have to do it

the good lady was watching big brother so stopped me going to sleep

im just trying to save some money here and there and learn by my/others mistakes

may be off to trents saturday, if they got anything with easy access ill let you know....tool box needs refilling

colin

MikeT · Post by **MikeT** » 12 Jul 2007, 21:28

You know, I've never ventured to Charlie's yard and I've been down here over a year now

Is it true he's a little on the greedy side or can bargains be had? Every penny counts here.

I need so much I'd have to book a weekend pass

Like a kid in a sweet shop

RichG · Post by **RichG** » 12 Jul 2007, 21:35

I replaced mine about 1 year ago and IIRC I only had to remove the radio to gain enough access to release one of the two clips that hold the unit in and 'waggle' it free. There are two plugs to the unit. One to the motor at the back and one attached to a trailing lead from the temperature sensor.

I did try to clean my old one but in doing so managed to break one of the very fine motor wires. These are impossible, believe me I tried, to solder back on!

The motor is made up of a stationary coil and the magnets, attached to the fan, rotate around a central peg inside the coil. It is what is none as a brushless inrunner motor. If you have to buy a new unit there are two types the one without the red led in the centre is cheaper and the led part can be swapped over if you are careful.

Regards
Richard

Post by **admiral51** » 12 Jul 2007, 21:45

depends if you have an honest face

best way is to phone and ask how much-- is it on the shelf--- or do you have to get it yourself
ask for a couple of other things that you dont need and hope they are cheap and on the car 8)
then you end up with B O G O F (or two or three) depends on size of tool box

if i go weekend ill pm you and let you know whats up there

i may have space myself

colin

Post by **admiral51** » 12 Jul 2007, 21:47

thanks richard as mine is making funny noises now and then i now know the best angle of attack when mine gives up the ghost

colin