Power glitch.
Unplug the appliance.
Wait a minute.
Plug the appliance back in.
If that doesn't work, switch the circuit breaker off.
Wait a minute.
Switch the circuit breaker back on.
Unplug the appliance.
Wait a minute.
Plug the appliance back in.
If that doesn't work, switch the circuit breaker off.
Wait a minute.
Switch the circuit breaker back on.
Please check the voltage requirements and connect the appliance to a correct power supply.
Contact an electrician, if necessary.
Make sure that the vents on the rear panel of the appliance are clear (nothing is blocking them and they are not pressed against a wall).