Wendy said temperatures felt off in the Greenhouse, checked unit and found gable damper not opening due to a broken cable. Also checked temperatures during operation, temps in greenhouse swing from 50 degrees to 110 degrees, determined thermostat remote sensor is broken. Ordered new one, will be in in a few days. Set dampers and stat to try to keep temps in line with thermostat settings. 3/27/2023 returned and replaced remote sensor, made a new wire for damper and installed it. Tested heat and cool, all stages, temps are in line with settings on controller.