Heater blows only slightly warm air. A/C works only on the MAX setting
That’s a pity, but I bet a mechanic could figure out what’s going on if you cared to find out (your post makes it unclear if you’d like to fix it or you’re just complaining)
Here is a quick checklist of easy things you can check before heading in for service.
There may be a problem with the HVAC module.
Tester