F4E4 Serious Easy DIY

Whirlpool Dryer F4E4 — Supply Voltage Error

Whirlpool Dryer · Error code F4E4

What F4E4 Means

The control sees the incoming 240V line voltage is out of the acceptable range (too high or too low). Most often a house-wiring or breaker problem, not the dryer.

Symptoms

  • F4E4 on display
  • No heat or intermittent heat
  • Dryer trips off mid-cycle
  • Other 240V appliances in house also acting up

Common Causes

1
Tripped or weak breaker

Half the 30A double breaker has tripped or is failing.

2
Loose terminal block / cord lug

Connection at the dryer terminal block or outlet has loosened.

3
Utility brownout / overvoltage

Incoming line voltage genuinely out of spec at the meter.

How to Fix It

  1. Reset both halves of the 30A dryer breaker.
  2. Unplug the dryer and check outlet voltage with a multimeter — ~240V hot-to-hot, ~120V each hot to neutral.
  3. If outlet voltage is wrong, call a licensed electrician.
  4. If outlet voltage is correct, inspect the dryer terminal block screws and power cord for burnt or loose lugs.
  5. Power-cycle the dryer at the breaker for 5 minutes and run a Timed Dry.

More Whirlpool Dryer Codes

AF AF — Airflow Restriction E1 E1 — Inlet thermistor open circuit E2 E2 — Inlet thermistor shorted Err Err — Door Not Fully Closed F01 F01 — Main electronic control board failure F02 F02 — User Interface / Keypad Failure

All Whirlpool codes → All dryer codes →

Verified against manufacturer documentation: atoz1.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.