Trane Xe90 Troubleshooting
Weboct 19, 2018 · i currently have a trane xe90 (92%) furnace with an xe900 a/c unit, both are about 18 years old. System blowing air with no heat in winter. Simple diagnostic steps followed to ultimately determine that it was an igni. Disconnect power to both the indoor and outdoor. Webdisconnect all electric power to the indoor air handler or furnace before removing access panels to perform any maintenance.
Over the past few weeks the blower fan has been getting.
