ARCING OR SPARKING – EMPTY CAVITY
Arcing or Sparking – Empty cavity issue
Is the microwave oven cavity empty and operating?
The microwave should NEVER be operated empty. Reason being there must be something
inside the unit in order to absorb the microwaves or the cavity risks getting burned or scorched.
Place a cup of water in the microwave and “cook” for 30 seconds. If no sparking occurs, then it
is okay to continue using it.