Maytag Range Error Code F1-B

F1-B means the control board has detected a failure in the lower latch switches, which are part of the oven door latch assembly. These switches tell the board whether the oven door is locked or unlocked. The code typically appears when attempting or running a self-clean cycle, because the board cannot confirm a valid locked door signal from those switches.

Standard baking and cooking functions are generally still usable when F1-B is active, since this code is tied to the latch switch circuit used for self-clean operations. However, the self-clean cycle will not operate safely or at all with this fault present. Continued use for everyday cooking is typically safe, but the underlying latch switch issue should be resolved before attempting another self-clean cycle.

Clearing the code by unplugging the range or using the control panel will remove the displayed error temporarily, but the code will return as soon as the self-clean cycle is initiated again if the underlying latch switch or wiring issue has not been repaired. Clearing the code is useful for resetting the board after you have made a repair, but it is not a fix on its own.

Start by inspecting the latch wire harness for any loose connectors, pinched wires, or corrosion at the terminals. Unplug the range, locate the harness running from the lower latch switch assembly to the control board, and reseat all connectors. If the harness is intact, use a multimeter to test the lower latch switches for continuity in both the locked and unlocked positions. A switch that shows no continuity change needs to be replaced along with the latch assembly.

If the fix is simply reseating a loose harness connector, there is no parts cost and only your time. A replacement door latch assembly for a Maytag range typically runs between $40 and $90 for the part. If a professional technician is needed, expect a service call fee plus one to two hours of labor, bringing the total repair to roughly $150 to $250 depending on your area and the specific model.