So the RR has been parked up since May as I've been too busy to sort things out (suspension bits).

As part of the work I replaced the FSR which as expected solved the fan not working at all speeds. However I only get air coming out the bottom vents by the feet. The IID tool doesn't seem to have any relevant information that it can read. I did try the calibration routine for the vents but after 5 minutes gave up waiting for it do something and moved on with my life.

Any recommendations on where to start looking? I've got bigger fish to fry getting it back on the road for towing the Argocat to Scotland in two weeks so it's not essential but would be nice if they worked properly. Ed

I'm pretty sure I changed the heater control valve once before for this very same fault

Wouldn't that control whether it's hot or cold air? Getting hot air but it wasn't coming out of any of the upper vents.

Ironically just started it up to check bushes underneath and it's all working now. Lack of use  Ed