Sharp · Microwave error code
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Get lifetime accessOnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.
Guide · MicrowaveMid-cook shut-downs usually mean a thermal cutout is opening because the cooling fan failed or the vents are blocked, or a marginal door switch is opening. Check airflow and installation first, then the fan, cutouts and switches with the HV capacitor discharged.
Component test · MicrowaveThe magnetron turns high voltage into microwave energy. An ohmmeter can catch an open filament or a filament shorted to the case, but it cannot prove the tube makes full power. Rule out the HV diode, capacitor and transformer before ordering a magnetron.
Guide · MicrowaveConfirm with a water test on High. Then rule out a low power setting and low line voltage, since a small voltage drop cuts output a lot. An aging magnetron is the most common part cause; poor connections and a failing thermal protector also show up.
Sharp · Microwave
EE1 / EE2
One magnetron not working
Sharp · Microwave
EE4
Supply voltage too high
Sharp · Microwave
EE5
Supply voltage too low
Sharp · Microwave
EE6
Thermistor failure
Sharp · Microwave
EE7
Exhaust or magnetron temperature too high
Sharp · Microwave
EE9
Maximum heating time exceeded