Ventilation Fan (406)

The ventilation fan in my 406 has been turning off or failing to start on
occasion. No apparent reason.

If the speed control is left on, then one day, the fan will come back to
life and I have several days of troublefree operation.

Now, it's been dead for over two weeks.

Obviously in this hot weather I'm missing the air-conditioning (that still
works, but without a fan it's pointless).

A garage has had a look at it twice, but the problem has been that when they
start trying to trace the fault, the fan starts operating before they could
figure out why - and it's not so intermittent that it'll stop again.

The speed control seems to be ok (when it has worked), i.e. has not shown
any signs of flakiness.

I'm wondering if I could have a go at tinkering around, and if so where do I
start?

 

Try the 4 way connector to the motor. The usual cause is one of the
wires burning out inside the plug. The cure is to cut out the plug
(first noting which wires go where!) and fitting insulated female
Lucar connectors. Then put them one by one in to the motor in the
correct position.
The other fault is the ignition switch, which usually affects early D9
406's. You don't say what year yours is.

 

Thanks Nigel.

It's an R reg.

The ignition switch melted and fused about a year ago, and has been
replaced, so perhaps the problem is in that neck of the woods...

The garage said the furthest they got when trying to trace the fault (and
the fan started working again) was just before they got to the ignition side
of things.

 

This could be a silly question, but I never had a peugeot before.
I have a 406 from 99 with regular AC (not automatic) and the ventilation fan
is allways on, even with speed selector at off, only stops when the
ingnition is off.

Is this normal? Is there a way of completelly stopping it? What may happend
if its left this way?

Thx
Jorge

 

This is normal. It runs slowly when the speed selector is off. Never
could figure out why!

 

This proved to be the fault. The connector is quite black in places, and is
the intermittent connection, i.e. if nudged the fan springs back into life
for a while.

Excellent advice. Thanks!

I will try your cure.