Sharp Microwave Error Code EE31

EE31 on a Sharp microwave indicates that both magnetron 1 and magnetron 2 have reached the end of their operational lifespan. The control board monitors the condition of each magnetron and triggers this code when both tubes are no longer performing within acceptable limits. The microwave's heating function will be disabled until both magnetrons are replaced.

No, resetting the microwave will not clear the EE31 code. This code is triggered by the control board detecting end-of-life wear on both magnetrons, and the underlying condition will persist regardless of any power cycle or reset. The error will return until both magnetrons are physically replaced.

Because EE31 requires replacing both magnetrons, repair costs can be significant. Parts and labor for a dual-magnetron replacement typically range from $150 to $400 or more depending on the specific model and local labor rates. It is worth comparing the repair cost to the replacement cost of the unit before proceeding, especially on older models.

Replacing magnetrons is not recommended as a DIY repair for most homeowners. Magnetrons operate within a high-voltage circuit that can retain a lethal charge even after the unit is unplugged, particularly in the capacitor. A qualified appliance technician with experience in high-voltage microwave systems should perform this repair.

You should not attempt to use the microwave for heating while EE31 is active. Degraded magnetrons can produce unpredictable output, and in some cases a failing magnetron can generate arcing or excessive heat internally. It is best to stop using the unit until the magnetrons have been replaced by a technician.