Chosen Solution
just opening the microwave turns it on.
@triveni, triveni, Sound like possibly failed switches. This is a unsafe condition and you really should consider unplugging/not using and have a qualified appliance tech. having a look and estimate repair. Microwaves can be very dangerous to work on. If still under warranty, use it for repair/replacement/refund. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.