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Old 28-12-2007   #31
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Re: Ducato (2003) - Fan heater not blowing air

Yep, only illuminates when wire pushed into upper slot where fuse goes, with ignition on.
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Old 28-12-2007   #32
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Re: Ducato (2003) - Fan heater not blowing air

Quote Originally Posted by T14086 View Post
From memory to get to connector you undo most of the glovebox screws but you can get centre section out without actually taking glovebox out...if your stuck let me know,good luck
Well, the glovebox/lower dash section is already off, but can't really see behind the central part of the dash, so going to go ahead an whip that off now.
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Old 28-12-2007   #33
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Re: Ducato (2003) - Fan heater not blowing air

fuse definately ok? (swop with another?)

If yes then you have break in supply wire between fusebox & motor.
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Last edited by T14086; 28-12-2007 at 22:35.
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Old 28-12-2007   #34
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Re: Ducato (2003) - Fan heater not blowing air

Fuse definitely okay - swapped with another and no change.
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Old 28-12-2007   #35
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Re: Ducato (2003) - Fan heater not blowing air

break in supply wire between fusebox & motor then
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Old 28-12-2007   #36
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Re: Ducato (2003) - Fan heater not blowing air

I should have guessed that long ago really, given that I only had to hit the dash for the fan to come on before it went completely kaput.

Right - off with the dash, it is then. What a way to spend a Friday night. Really appreciate you guiding me through the diagnosis procedure. Thanks again.
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Old 28-12-2007   #37
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Re: Ducato (2003) - Fan heater not blowing air

sorry couldn't help more,let us know how you get on
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Old 29-12-2007   #38
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Re: Ducato (2003) - Fan heater not blowing air

Update:

The fault turned out to be the switch (little black box) that plugs into the back of the fan speed selector on the dashboard.

When I unplugged it to examine it, I heard a rattle so I prised the switch open and found that the copper contact inside and a small spring had become dislodged. Also the switch casing itself was partly melted inside.

I turned the ignition on with just the piece of copper resting on two of the metal strips inside the casing and lo and behold, the fan came on (which put a smile on my face because I haven't heard it in so long).

I did notice however that the little piece of copper became extremely hot, very quickly. I wonder if that's normal and whether that caused the problem in the first place. I did stumble across a posting recently mentioning a recall for the fan heater wiring loom (but not sure if that was just for new models).

Meanwhile, my next challenge is to try and get hold of the part I need. My search on ePER has so far proved fruitless. I'll give my Fiat dealer a ring today and when I know the Part Number, I'll post it on this thread in case anyone else needs it.

Thanks again for your assistance, Moderator T14086.
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Old 29-12-2007   #39
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Re: Ducato (2003) - Fan heater not blowing air

Part No. 1305589080

(variable speed fan-heater switch - fits to back of speed selector knob)
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Old 29-12-2007   #40
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Re: Ducato (2003) - Fan heater not blowing air

Glad to see you found the Fault BigBlue,been watching with interest, and what can you say but a Big thumbs up to T14086 for hanging in there with you, " Brilliant" All the Best for the New Year Corky
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Old 29-12-2007   #41
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Re: Ducato (2003) - Fan heater not blowing air

Hey Corky 8 - thanks for the comment.

You know, I was quite enjoying my lesson in electrical fault diagnosis. I almost wish I hadn't found the fault quite so soon... almost!

Well, it's all back together now and I've got hot air blasting out of every orifice. Beautiful.

All the best for '08!

BB
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Old 29-12-2007   #42
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Re: Ducato (2003) - Fan heater not blowing air

Quote Originally Posted by BigBlue View Post
I did stumble across a posting recently mentioning a recall for the fan heater wiring loom (but not sure if that was just for new models).
Old (230) model

Quote Originally Posted by BigBlue View Post
Thanks again for your assistance, Moderator T14086.
Your welcome,glad you got it sorted

You might be interested in one of these...

http://cgi.ebay.co.uk/SEALEY-PP1-Aut...QQcmdZViewItem

....extremely handy & quick in locating faults & you can power up components,in your case you could of powered up fan insteard of removing it etc....very very useful,just stay away from airbags though!

Happy to year to you all

T
Thanks BigBlue thanked for this post
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Old 03-03-2009   #43
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Re: Ducato (2003) - Fan heater not blowing air

I have much the same problem and it's been very useful to follow this thread through. However I can't figure out how to dismantle the central dash area where the heater controls are fixed. I have removed the left and right lower dash panels and can remove the radio and loosen the upper panel with the foglight and emergency flasher switches are but how to get at the heater controls?

I know this is an old thread so I hope someone will spot this post!

Cheers,

Mike
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Old 03-03-2009   #44
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Re: Ducato (2003) - Fan heater not blowing air

Hi Mike,

Are you sure you've located all the screws?

I recall quite a few hidden ones... under the gearstick, flask holder, in the ashtray and in the gap below your radio (I remember those being a bit fiddly).
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Old 04-03-2009   #45
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Re: Ducato (2003) - Fan heater not blowing air

Hi, the fan speed control switches burn out regularly on these. Pull the radio panel up, pull centre dash panel out, remove htr knob, undo 2 phillips head screws, switch assy will just fit out past the heater cables. I have rebuilt the switches but its quite fiddly, get a new one if you can.
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