Dryer displays F70 and may not respond to controls or may not start.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety First: Unplug the dryer before opening the console or touching any internal wiring.
- Step 1 – Access control console: Remove screws securing the top and console. Tilt the console forward to expose the user interface (UI) and main control board.
- Step 2 – Inspect communication harness: Locate the multi‑wire harness connecting the UI to the main control. Ensure both ends are fully seated and free of corrosion or damage.
- Step 3 – Reseat connectors: Unplug and firmly reconnect the harness at both boards. Check for bent pins.
- Step 4 – Visual inspection: Look for burnt spots or damage on either board. If one board shows obvious damage, replace that board with the correct OEM part.
- Step 5 – Replace suspect board: If no visible damage but F70 persists, replace the user interface first (most common), then the main control if needed, following model‑specific service procedures.
Because this involves multiple electronic boards, many homeowners prefer to have a professional technician perform final diagnosis and replacement.
Repair Difficulty
Required Part
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