99 XY heater issue

I have no hot air coming from the heater. The heater core is clean, I have a 98 that had this issue and there was a cable under the dash on the passenger side that had broke. But there is no cable on this one for the blend door. Is there a common problem that is the culprit here. Thanks

The blend doors will wear out and not seal so itll just let air flow through. a way to check it is it turn the switch on and listen in the pass side floorboard to see if the motor is moving the blend door. If the motor still works, replace your blend door with a heater treater blend door. its not cheap but it wont wear out.

https://heatertreater.net/jeep-cherokee-97-06

99 has a solenoid. It s not cable operated. I don't remember it's location. Possibly the glove box door needs to be swung down?