Heating and AC duct doors shut down, fan motor working hard, no air movement
Heating and air conditioning starts out working just fine then after driving for an hour the air stops flowing on all settings. You can hear the fan working hard but the vent doors just all shut down, no air flow into the vehicle on any setting. If you pasrk for over 30 minutes the system is working again.
It is possible that it is your blend door actuators, but I would also suspect the switch itself. it may not be selecting the setting you want.
blend door actuators, could be it, just so weird how it's working fine then the doors just totally close up so no air passes no matter where the switch is moved to. After about 30 minutes of being turned off and parked it works fine again.
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