cabin heater fan is not working properley

[johnrobert]

SORRY COMPLETE NOVICE AT THIS MY PROBLEM IS MY CABIN HEATER FAN WILL ONLY WORK AT MAXIMUM POWER SETTING ON THE CONTROL SWITCH
IF I KNOCK IT DOWN A NOTCH THE FAN CUTS OFF ALL TOGETHER AND WILL NOT COME BACK ON UNTIL I HAVE TURNED THE ENGINE OFF AND RESTARTED THE CAR MY CAR IS A 406HDI 1999 CAN ANYONE GIVE ME ANY ADVISE THANKS

[V6Exec]

Welcome to the forum.

Seems there has been a slew of heater related problems come to light recently.

Does yours have the climate control system or the manual controls?

[johnrobert]

thanks for your quick response it as the climat control system along with ac which does not work either even though i had it re charged last year but thats just another problem

[V6Exec]

The dreaded French electrics strike again.

In the Haynes books it shows an electronic control module for the blower fan.

The usual fix is to swap out known good items to identify what is wrong. Options are speak to 406 owning friends or nip down the scrappys.

[jameslxdt]

sounds like the fan resistor pack, check for feed to it if it appears to be ok, then change the resistor

[johnrobert]

thanks for your interest in my problem as i say i`m a complete novice and i must admit car electrics are a little daunting I have managed to locate my cabin fan but all i can find in close proximity to it is numerous wires and connecting blocks unable to find any relay switches or resisters if any one as any knowledge
wether these can be found i would be truley greatful. If anybody as a haynes manual of even a wireing diagram for my 406hdi at a reasonable price i would be willing to buy it may help me in the long runthnaks once again

[Maranman]

Hi Johnrobert,

Had the same problem myself earlier this year! If I can fix it then anyone can...
Bought a replacement fan (which includes the control unit) from a local (Devizes Reclamation - shameless plug) vehicle recycling facility for about £10.
Also got a manual from Ebay - about £10.
Did a bit of reading. undid a few screws . Disconected a few plugs . As Haynes says - do it all in reverse and bingo, a fan that works.

Now all I need is a heater unit that actually heats the car oh sooo slow....leave the motor running for 10 mins before I need to drive it and it NEVER seems to get HOT, just warm!

Bit of a 406 (but not Pug) newbie myself so good luck and of course welcome

[johnrobert]

thanks maranman
will have a look at my local scrap yard and see if they have the neccersary fan and control unit in and if so will give it a try still looking for that manual if any one has one.