Here are the diagnostics and service info on both blend doors. The metal frame normally isn't removed, you have to remove the duct behind it and then you can get to the blend actuator mounting screws. Now if you have the dual controls and neither one will change temperature then it is more likely the control head instead of the actuator. If you have access to a good scan tool it can be used to test the system without needing to tear it all apart.
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Saturday, October 8th, 2022 AT 1:49 PM