Mechanical Problems
WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes of insufficient heat due to mechanical problems are as follows:
- Restricted cabin air filter
- Obstructed cowl air intake
- Obstructed heater system outlets
- Inoperative engine thermostat
- Inoperative blower motor system
- Inoperative A/C-heater control
- Inoperative blend door actuator
- Inoperative, obstructed or improperly installed blend-air door