On Sat, 5 Jul 2003 19:10:32 +0100, "Paul J S Green"
Yeah, of course it can.
Remove the phillips screws from the under dash panel on the passenger
side, pull the panel down and towards you and underneath you will see
a plastic trim with two plastic slides on it, slide them towards each
other and pull the trim down, you are now staring at your pollen
On Sat, 5 Jul 2003 21:47:10 +0100, "Paul J S Green"
Don't want to state the obvious, but did you have the ignition on?
With the ignition off the recirc button reactivates the fans, so you
can leave the blower on for the passengers if you have to take the
keys, the situation you describe is very similar....
On Sun, 6 Jul 2003 00:03:22 +0100, "Paul J S Green"
Drop the under dash panel again and beside the pollen filter you
should see the housing for the blower motor, with a plug connector
exposed. Disconnect the plug and check your voltages here, its a 3 pin
connector. You should have battery voltage across the two outer
terminals and you should get varying voltage between the central
terminal and the live outer terminal as you vary fan speed.
I accessed the plug and played around with the voltages on the terminals
when I had the panel off (panicing that I've blown the motor) but not in
such a structured manner.
I'll be on the case later this morning.
ok, here we go.
three teminals are numbered:
1 - Brown
2 - White 9thin wire)
3 - Blue / Red
Connecting 1 & 3 gives 12v, even with the ignition off. this is not
affected by the fan switch position.
Connecting 2 & 3 gives exactly the same. again, this is not affected by
the fan switch position.
Connecting 1 & 2 gives nothing unless the recirc switch is on, then give
1.8 volts. when the 1.8v is delivered, the voltage between 2 & 3 drops by
1.8v. With the block connected to the fan I get a slow speed when recirc is
Also, the aircon button (EC i think) doesn't light up when pressed, and i'm
sure the recirc button didn't work (slow fan) without the ignition before
this problem - does now, but that might be a red herring.
When driving, the air being forced through by road speed is now hot, even
with temp at cold on both sides. is this the default when there's a problem
with the system?
On Sun, 6 Jul 2003 16:46:52 +0100, "Paul J S Green"
Based on that Im gonna go for a heater control unit (which is all
incorporated into the unit in the dash with fan/temp controls)
The blower is doing what its told, 1.8v is only gonna spin it slowly,
its about the value you should get from selecting speed 1.
If you have constant hot air then either the duo valve is stuck open,
or the heater control unit is keeping it open. Seeing as all was fine
before and now you have another problem with the fans I doubt the duo
valve has also stuck (I hope you aren't that unlucky!) Much more
likely the control unit has gone down and taken out the blower and the
I might have one kicking around somewhere, I'll have a look
So; it's possible that removing and replacing fuses spiked the heater
If you have something, it would certainly be worth talking about.
I take it that it would be too good for the HCU to have an onboard fuse or
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.