Diagnostic overview for error FTD
Use the sequence meaning → symptoms → accessible checks → stop conditions. For FTD, the current manufacturer-sourced summary is: GE lists FTD or F56 as a failure-to-drain condition and recommends checking the drain hose, air gap and disposer.
Safe sequence
- 1Disconnect electrical power before handling drain components.
- 2Inspect the visible drain hose and clean the accessible air gap.
- 3Run the disposer and confirm a new-disposal knockout plug was removed.
Stop and get qualified help when
- Standing water cannot be removed safely
- The drain pump requires panel removal or electrical testing