Jenn-Air Microwave Error Code F4E5

F4E5 indicates that the weight sensor in your Jenn-Air microwave is reading a value outside its normal operating range. The weight sensor is used to detect food mass for automatic cooking functions. When the control board receives an out-of-range signal from this sensor, it triggers the F4E5 fault and stops operation until the issue is corrected.

The microwave will typically not operate normally while this fault is active, which prevents potentially inaccurate cooking cycles. Do not attempt to bypass the fault for continued use. Address the sensor issue before resuming operation.

Repair costs vary depending on the specific model and whether you use a professional technician or perform the repair yourself. Parts costs for a weight sensor typically fall in the range of $30 to $100, while professional labor can add $75 to $200 or more depending on your location and the service provider.

The repair requires replacing the weight sensor after disconnecting power to the microwave. A technician or experienced DIYer comfortable working with appliance components can perform this repair. Always unplug the microwave before accessing any internal components, as microwave capacitors can retain a dangerous charge even after power is removed.

Disconnecting power may temporarily clear the fault display, but the F4E5 code will return if the underlying weight sensor problem has not been resolved. A reset alone is not a fix. The sensor must be inspected and replaced to permanently clear the code.