It's possible that the magnet you found stuck to the inside of the dishwasher door could have been affecting the control panel's functionality. Dishwashers often have sensors and switches located around the door and control panel area, and a stray magnet in that region might interfere with their proper operation.
Here are a few scenarios that could explain the situation:
Magnet Interference: The stray magnet may have been causing interference with the dishwasher's electronic components or sensors. When you removed the magnet, the interference ceased, allowing the buttons to function correctly again.
Resetting: Disconnecting the magnet might have acted as a soft reset for the dishwasher's electronic controls, which could have resolved any temporary glitch or software issue that was causing the buttons not to respond.
Moisture or Condensation: Sometimes, moisture or condensation can accumulate around electronic components, causing temporary malfunctions. Removing the magnet might have allowed the moisture to dry out over the two-day period, leading to the restoration of normal functionality.
If the buttons continue to work correctly, it's possible that the issue has been resolved. However, if the problem reoccurs or persists, there might be other underlying causes, such as a faulty control panel, wiring issues, or electronic component malfunctions. In such cases, it's best to have the dishwasher inspected and repaired by a qualified technician.
Remember that tampering with electronic appliances like dishwashers can be potentially dangerous and may void any warranties you have, so if you encounter any ongoing issues, it's best to seek professional assistance to ensure a safe and proper repair.