Maytag Washer Error Code F3E7

F3E7 indicates that the moisture sensor strip has shorted. This is a fault detected in the sensor circuit that monitors moisture within the washer drum. Importantly, this code only appears when the machine is running in service diagnostic mode, so it will not show up during a normal wash cycle. A technician running diagnostics will see it as part of the Test 5 moisture sensor evaluation.

Because this code only appears in service diagnostic mode and not during regular operation, the washer may continue to run normal cycles without displaying the fault to you. However, a shorted sensor strip indicates a real electrical fault in the machine that should be addressed. Continuing to use the appliance without repair could mask underlying wiring or component issues that may worsen over time.

Repair costs will vary depending on which component has failed. If only a connector cleaning or minor wiring repair is needed, costs may be limited mostly to labor, generally in the range of $75 to $150 for a service call. If the moisture sensor strip requires replacement, parts and labor together typically fall in the $100 to $250 range. A control board replacement, if needed, is the most expensive outcome and can range from $200 to $400 or more depending on the model.

Some of the underlying causes, such as a contaminated connector or a visually damaged harness, can be inspected and addressed by a knowledgeable DIYer. However, properly diagnosing this code requires following the Test 5 moisture sensor procedure, which involves electrical testing of the sensor circuit. If the sensor strip itself has failed, replacing it requires disassembly of the drum area, which most homeowners should leave to a qualified technician.

A power reset will clear the active fault display, but it will not resolve the underlying short in the moisture sensor circuit. The next time the machine is placed into service diagnostic mode, the code will return if the sensor, wiring, or connector has not been repaired. A reset is not a fix for this fault.