Citroen Xantia heater fan stuck on full speed

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davkirk
Posts: 16
Joined: 27 Mar 2006, 21:36
Location: south yorkshire
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Post by davkirk »

PROGRESS IS BEING MADE!!! The ignition was faulty, the jump wire has now gone :lol: i've fitted the relay and got my rear window demister back on again, but the damn heater blower is still going full whack!!, So as Clogzz suggested i removed the output transistors from the motor and guess what? IT STILL RUNS ON FULL SPEED regardless of where the switch is!! Now i have to keep removing fuse 20 to stop it, :evil:
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Clogzz
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Joined: 15 May 2005, 18:04
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Post by Clogzz »

Congratulations, looks like you've got an unusual one ! :roll:
Next step is to disconnect the thin wires, to see if that affects it.
If you suspect the control module, it should be easy and cheap to get one from a wreck, because it doesn’t look like there’s any stampede for them. :mrgreen:
As an experiment, and hopefully not as a last resort, you could try BonceChops’ homemade external speed controller:

http://www.frenchcarforum.co.uk/forum/v ... p?p=113427

More ideas here, especially Tom Sheppard’s posts, even though they are for the BX:

http://citroenz.com/forum/viewtopic.php?t=1878&start=15

http://www.bxclub.co.uk/forum/viewtopic.php?t=536

http://www.bxclub.co.uk/forum/viewtopic.php?t=1531

Best wishes, and keep us posted. :D
2002 C5 2.0i AL4 230,000 km 76372389
davkirk
Posts: 16
Joined: 27 Mar 2006, 21:36
Location: south yorkshire
My Cars:

Post by davkirk »

SORTED AT LAST!! I Put my motor into my father-in-laws car after refitting the transistors and it worked perfectly... put it back in my car and guess what .... IT BLEW FULL WHACK AGAIN :evil: . Luckily i took note of the wiring colours on the 4 pin plug on his car, and yes they were different to mine. i changed the red & black wires round & "BINGO" it works perfectly. some idiot must have been tinkering before it was fetched to me. A Big "THANK YOU" to all have helped me, i could never have done it without you all.. :D
davkirk
Posts: 16
Joined: 27 Mar 2006, 21:36
Location: south yorkshire
My Cars:

Post by davkirk »

hi all, i've changed the crankshaft pulley, but to no avail :cry: the noise is still there, does anyone recommend changing the injectors or could it just be normal engine noise, it does quieten a little as the engine gets warm, it has just reached 110,000 miles,
thanks,
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