What F4E1 means
There may be a problem with the heater or the heater relays.
Also shown as: F4 E1, depending on the model.
Likely causes
- Heater or heater relay fault
Safe first checks
- Turn the breaker(s) off for 1 minute, back on, and start a Timed Dry cycle.
When to stop
If F4E1 returns, schedule service. Heater repairs involve 240 V wiring.
Checked against: Whirlpool Product Help: F4 E1 dryer. Codes can differ by model and year, so confirm with your owner's manual.