General fiat ulysse heating problem, HELP PLS

[pourel]

HEATERS
Air blowing through side door vents front and rear, but NOT through Central air vents and side vents.
Heaters Luke warm but not hot.
A/c cools ok.

Any ideas?

 

[digger58]

What does the temperature gauge say? is the car coming up to operating temp?
what year and model? A bit more info may help don't you think?

 

[pourel]

Tempreture reaches normal ,90. The model is 2005 ulysse, Diesel, Auto.

Any ideas?