F70
Kenmore
Control Board Failure / Watchdog Error
Dishwasher shows F70 and may be unresponsive or stuck in a cycle.
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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.
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Possible Causes
Internal control board fault, Power surge damage, Corrupted control software, Overheating of control module
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker.
- Hard reset: Leave power off for at least 5–10 minutes to allow the control to fully discharge, then restore power and test.
- Check ventilation: Ensure the control area is not blocked and that insulation is correctly positioned to avoid overheating.
- Inspect board visually: Remove the control housing and look for burned components, bulging capacitors, or corrosion. If present, replace the control board.
- Surge protection: If the failure followed a power event, consider installing a surge protector on the dishwasher’s circuit after replacing the board.
Persistent F70 almost always requires main control board replacement.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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