Sparking inside the cavity usually means the waveguide cover has been damaged or food residue is arcing. Stop using the microwave when that happens rather than finishing the cycle, because continued arcing damages the magnetron.
Cleaning the cavity is owner work. A damaged waveguide cover needs replacing by a technician, and on a countertop unit of this age the sensible question is whether the part cost justifies keeping it.
Key Features
- Countertop microwave documented in GE owner manuals
- Larger cavity than the compact JES models
- Turntable with preset and time-cook options
- Free-standing worktop installation
Most Common Issues on This Model
No heating with the display and turntable still working
Sparking inside the cavity from a damaged waveguide cover
Door alignment wear
Control panel faults with age