Upon inspection, the heating system had recently undergone an upgrade with new wiring and a new disconnect installed by an electrician through Old Republic. However, the prongs inside the new disconnect were not making proper contact with the pull-out. I meticulously adjusted the prongs to ensure they made a secure and reliable connection. Following this, I checked the system's operation, measuring the blower motor's amp draw at 0.9 and the heat strips' amp draw at 11.8 on both coils. To confirm the system's functionality, I allowed it to run for 20 minutes, during which it operated without any issues. The heating system is now performing correctly, providing efficient and reliable heating.