As of 2015, a replacement fuse for a GE microwave can be purchased on the websites for PartSelect and RepairClinic. Replacing the fuse for a GE microwave is essential if excess electrical current passes through the unit via the thin wire inside the fuse.
Most stores that carry parts for GE appliances have a large variety of replacement fuses for the different models of GE microwaves. The prices for GE microwave replacement fuses on PartSelect and RepairClinic range from $2 to $8. The RepairClinic stocks different types of replacement fuses for GE microwaves, including line fuses and thermal fuses. Both sites provide shoppers with information on how to replace the fuse.