Xterra Defrost Heat Issue

Dude, I had a similar issue with my old Pathfinder – a real pain when the windshield fogs up! If you've already checked the obvious plug connections, it could be the flap motor itself or even a deeper issue within the HVAC unit. Does the air change direction at all when you switch modes, or is it just stuck blowing weakly?

It's kind of stuck. There's a little change, but not much. You think it's worth tearing into the HVAC unit myself, or am I just asking for more trouble?

Based on what you're saying, and considering you've already done some basic checks, I'd say just bite the bullet and take it to a decent shop. A faulty flap motor or a wiring issue deep in the system can be a nightmare to diagnose without the right tools. My friend had a similar problem, spent days messing with it, and ended up costing himself even more when he broke something else!

Yeah, you're probably right. Dropped it off at the shop; they're saying it's a bad cable or plug, repair cost is 95€. Thanks for the advice.