Peugeot 406 (1999 - 2004) - 00 2.0 HDI Climate control blower stopped working

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Tue 23 Sep 2008 22:31
00 2.0 HDI Climate control blower stopped working - 406airconproblem
406 estate X Reg 2.0 HDI Diesel.

Aircon on climate control not cooling for sometime , probably due to loss of gas over a period, not bothered about this.

However Interior heater / cooling blower fan has now stopped working alltogether.

Checked fuses F2 & F40.

Checked blower motor works with a direct feed.

Checked feed OK to both fuses above from ignition switch.

So from haynes manual wiring diagram , fault can therefore now lie in either :

Blower control module
Heater Panel
Air Thermistor

Any thoughts on whats next best course of action to trace fault, am I missing something obvious to check before trying to source say a new heater panel ?

Would the aircon pressure switch turn off the blower ? Thought this would just stop the aircon compressor turning on ?

Any advice welcome ?

Edited by Dynamic Dave on 24/09/2008 at 01:12

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Tue 23 Sep 2008 23:22
2000 2.0 HDI Climate control fan blower stopped wo - elekie&a/c doctor
Sounds like the electronic fanspeed regulator has failed.It is situated in the air ducting adjacent to the blower motor.If I recall it has a green multiplug electrical connector attached to it.The a/c inoperative will not affect the operation of the blower motor function.hth
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Wed 24 Sep 2008 09:33
2000 2.0 HDI Climate control fan blower stopped wo - 406airconproblem
Thanks for prompt reply.


" Sounds like the electronic fanspeed regulator has failed.It is situated in the air ducting adjacent to the blower motor.If I recall it has a green multiplug electrical connector attached to it.The a/c inoperative will not affect the operation of the blower motor function.hth "



Can you describe what the " Electronic Fan Speed regulator " looks like ?

I have removed a unit which clearly supplies feed to the motor, this is about 2' x 4' and has 3 or 4 alluminium cooling fins or sensors.

Is this the unit you describe ? Is it the a/c air thermistor ? Can I somehow test for feed to and from it to confirm its this unit as faulty somehow, as I have tried to find a feed but cant ?

The main heater electonic panel has power to it and all the symbols and lights seem to be working correctly so this looks to be functioning correctly ?

Thanks
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Fri 14 Nov 2008 20:45
2000 2.0 HDI Climate control fan blower stopped wo - hazza
Had same problem it turned out to be the wire from ignition to fan was not conducting power. So faulty ignition got price for new (fell over) decided against & RAN PERMINENT FUSED LIVE
from battery through bulk head has worked ever since.
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