Webfeb 3, 2023 · troubleshooting a trans xe90 furnace. System blowing air with no heat in winter. Simple diagnostic steps followed to ultimately determine that it was an igni. Webdisconnect all electric power to the indoor air handler or furnace before removing access panels to perform any maintenance. Disconnect power to both the indoor and outdoor. Weboct 19, 2018 · i currently have a trane xe90 (92%) furnace with an xe900 a/c unit, both are about 18 years old. Over the past few weeks the blower fan has been getting.
