How long do GE microwaves last?

How long GE microwaves last is 7 to 10 years with normal residential use and proper maintenance, which is near industry average for microwaves of 7 to 10 years and similar to Whirlpool microwaves. Countertop models like JES1097SMSS 1.1 cubic feet and over-the-range models like JVM6175SKSS 1.7 cubic feet average 7 to 10 years because they use magnetron, high voltage diode, and control board designed for 3 to 5 uses per day. Life span depends heavily on usage frequency, cleaning, and power surges. A family using microwave 10 times per day for reheating will wear out magnetron faster at 6 to 8 years than household using microwave 2 to 3 times per day that may last 9 to 10 years. Not cleaning interior weekly causes food splatter that damages waveguide cover made of mica and causes sparking that damages magnetron. Running microwave empty causes magnetron to overheat. Power surge without surge protector can damage control board costing 40 to 80 dollars. Over-the-range microwaves tend to have slightly shorter lifespan than countertop due to exposure to cooking heat and grease from stove below that clogs vent filter. To maximize lifespan, clean interior weekly with damp cloth and mild soap, clean grease filters monthly for over-the-range models, do not run empty, avoid slamming door that breaks latch at 20 to 40 dollars, and use surge protector. First part needing replacement is usually magnetron after 5 to 7 years at 50 to 100 dollars.