Electrolux Microwave Error Code E-22

The E-22 code on an Electrolux microwave signals a short circuit detected in the thermal sensor circuit. The thermal sensor monitors internal temperatures during operation, and when the control board detects an abnormally low resistance reading from the sensor, it stops operation and displays this fault. The issue can originate from a failed sensor, damaged wiring, or contamination in the circuit.

No, you should not continue using the microwave while E-22 is active. The thermal sensor is a safety component that prevents overheating of the magnetron and internal cavity. Operating the unit without a functioning thermal sensor removes a key protection mechanism and could lead to component damage or a fire hazard.

A power reset by unplugging the microwave for several minutes may temporarily clear the E-22 display, but the fault will return if the underlying short circuit in the thermal sensor circuit has not been corrected. The error code is triggered by a measured electrical condition, not a software glitch, so a reset alone does not resolve the root cause. The thermal sensor and its wiring must be inspected and repaired or replaced to permanently clear the fault.

A knowledgeable DIYer can diagnose this error by using a multimeter to test the thermal sensor's resistance and visually inspecting the wiring harness for damage. If the sensor reads near zero ohms or the wiring is visibly damaged, replacement of the faulty component is required. However, microwave repair involves high-voltage components such as the capacitor, which can retain a lethal charge even when unplugged, so proper precautions are essential before opening the unit.

Repair costs vary depending on what is found during diagnosis. A replacement thermal sensor typically costs in the range of $10 to $40 for the part alone. If professional labor is involved, total repair costs including diagnostics and installation can range from $75 to $200 depending on the service provider and the extent of any wiring damage.