Resetting an electronic control board on a residential kitchen appliance or microwave requires performing a complete electrical power interruption. Because appliance control boards lack a manual reset button, you must unplug the appliance power cord from the wall outlet or switch off the dedicated circuit breaker at your home electrical service panel. Leave the power disconnected for a full two minutes to allow internal microprocessors and capacitors to drain completely. You can troubleshoot control boards safely. You can verify that your corrective action is successful when restoring electrical power causes the digital display to reboot, flash the clock, and return to a normal standby condition ready for operation.
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