I have just had mine in the garage and they could not find a problem with the motor that does the direction. air moves from feet to face, just not to window. so direction motor is working
if anyone does have an idea i would like to hear it too.
if i figure it out will post solution
if anyone does have an idea i would like to hear it too.
if i figure it out will post solution
If it isn't going all the way to the top, then it isn't working correctly....
If you can get it on a full fat diagnostic device like a Faultmate Extreme, Autologic, Testbook et al, and do a calibration of all the blend motors as they will need to be told what their full range of motion is....
Also the Diagnostic Device will be able to force the motor to all the positions....if the Device says it should be at windscreen and nothing is coming out, suspect a blockage....
Get it on a diagnostic device first to calibrate and force position, as replacing the blend motors is tricky so make sure it is not a software/ECU fault first....
Then I would suspect a blockage or the vent ducting has either been disconnected or split imho....
The Wammer of Datatek are more knowledgable on the Nanocom Evolution than me....but I would think so as it is based on the Faultmate Extreme Software....
I would deffo get it on a diag machine just to confirm the calibration and to force the distro blend motor to windscreen first, as this would be easier than checking the ducting or removing/replacing the motor.
hippolover
New Member
The distribution motor is the easiest one to get to. Assuming yours is rhd take off the under dash panelling on the driver's side and look into the middle. You'll see the motor or at least the white toothed quadrant turning (or not) when you activate the switch. If the teeth are stripped at all then the flap could be stuck. You could manually turn it to have it midway and put up with it until you either want to do the full dash out trick or just leave it like that. As long as the heat ones are working. One of mine wasn't in October so the lot had to be done.
On the drivers side there are two motors...the lower one is horizontal and is the temperature motor, the vertically mounted one above it is the distribution motor....
When he says easier...it is a still a pain, but you dont have to dismantle most of the ducting to get to the mounting screws...!!
Right, Pulled the drivers side pannels off and the vent i cut out to get the matrix out. This gave access to the lower blend motor. I checked this out by going from hot to cold, no movement, locked, split it and manually moved it to hold the blend flap to hot. I couldn't get at the top one very easily, but as you described above this seems to be working, diverting the air as you select the different positions. I don't think it is working quite as good as it should, although now I can feel a waft of warm air comming from the windscreen vents. I can live with it like this. Warms up much quicker now though.
All Thanks for the help.
All Thanks for the help.
lowfat
Active Member
I now have the same problem. No air is getting to the windscreen vents. Temperature works fine, and I can get air out of the footwell and face level vents. Fans work great, minimum to maxumim speed is all selectable.
I have taken the disribution motor off and can move the lever it's full travel by hand (moves pretty freely), but still no air comes out of the screen vents....? The various levers and cogs on the side of the heater box are all meshed properly, and seem to be moving as expected.
I assume it must be a blockage? But before I start thinking about taking the dash out, does anyone have any other ideas?
If it is a blockage, is there anyway I can poke long things down the slots to unblock it? I can't really understand how it might've got blocked with anything to be honest....
I have taken the disribution motor off and can move the lever it's full travel by hand (moves pretty freely), but still no air comes out of the screen vents....? The various levers and cogs on the side of the heater box are all meshed properly, and seem to be moving as expected.
I assume it must be a blockage? But before I start thinking about taking the dash out, does anyone have any other ideas?
If it is a blockage, is there anyway I can poke long things down the slots to unblock it? I can't really understand how it might've got blocked with anything to be honest....
I haven’t taken it apart anymore than just removing the motor, and it did work perfectly until it didn’t, so I assume it’s all aligned properly. I was wondering if I took off that top bit of ducting, can I get a hand in the box to see what’s moving and what’s not???
I can’t understand if it was seized anywhere, why I can still get air to the feet and face?
I can’t understand if it was seized anywhere, why I can still get air to the feet and face?
There's some pictures on this page showing the flaps. https://www.mez.co.uk/p38-heater-o-rings4.html
Could be they are not moving together ?
Could be they are not moving together ?
