Sharp Microwave Error Code EE5

EE5 indicates that the Sharp microwave's control system has detected supply voltage that is too low for proper operation. The microwave monitors incoming line voltage and triggers this code to prevent component damage from undervoltage. The first thing to check is the voltage select switch setting on the unit and the actual measured voltage at the power outlet.

No, you should not attempt to operate the microwave while EE5 is active. Operating a microwave under low-voltage conditions can stress internal components including the magnetron and transformer, potentially causing premature failure or creating a safety hazard. Resolve the power supply issue before resuming use.

Repair costs depend entirely on the root cause. If only the voltage select switch setting needs adjustment, there may be no parts cost beyond a service call fee, which typically ranges from $50 to $150. If the outlet or wiring needs replacement, electrical repair costs can range from $100 to $400 or more depending on the scope. A control board replacement, if required, can add $150 to $400 in parts alone.

Start by checking whether the voltage select switch on the microwave is set correctly for your electrical service, either 208V or 230V. Then use a multimeter to measure actual line voltage at the outlet to confirm it is within the required range. If the outlet voltage is low, the issue is with the building's electrical circuit and may require an electrician. If voltage is adequate and the switch is set correctly, the control board may need further inspection.

Simply unplugging and replugging the microwave is unlikely to permanently clear EE5 if the underlying voltage problem still exists. The error will return as soon as the control board detects low voltage again. The fault must be resolved at the source, either by correcting the voltage select switch or by fixing the electrical supply, before the error will stay cleared.