Kenmore Dryer Error Code F4E1

F4E1 means the Central Control Unit detected no voltage at the heater relay. The CCU monitors voltage across the heating circuit, and when it sees nothing at the relay, it logs this fault. This code only appears in service diagnostic mode, so you may not notice it unless a technician or knowledgeable user runs a diagnostic test. The most common cause is a loose or disconnected wire at the relay or heater element.

Because F4E1 only appears in service diagnostic mode and not during normal operation, the dryer may still run. However, a wiring issue in the heater circuit is a potential fire hazard and should be addressed before continued use. Have the wiring connections and heating circuit inspected as soon as possible.

If the fix is simply reseating a loose wire connector, there may be no parts cost at all, though a service call to diagnose the issue typically runs between $75 and $150. If the wiring harness is damaged and needs replacement, parts and labor can range from $100 to $250. A failed CCU board is the most expensive repair, with parts and labor potentially ranging from $200 to $400 depending on the model.

Yes, in many cases the fix is straightforward. Start by unplugging the dryer, then check that all wire connectors at the heater element and at the heater relay on the CCU are firmly seated. If a connector was loose or unplugged, reseating it may resolve the fault. If the wiring is intact and the fault persists, further testing of the relay and CCU board may require a technician.

A reset may clear the code temporarily, but it will return if the underlying cause is not repaired. Because this code reflects a real circuit condition, disconnecting and firmly reseating the wire connectors is the correct approach rather than simply resetting the board. Address the wiring or component fault to clear the code permanently.