Maytag Washer Error F4E1 — What It Means & How to Fix It

What Does This Error Mean?

F4E1 on a Maytag washer means the water temperature sensor, called the NTC thermistor, is reading an out-of-range value. The washer cannot confirm the water temperature and stops to protect the motor and heater. The sensor usually needs cleaning or replacement.

Affected Models

Maytag MVWB865GW
Maytag MVWC465HW
Maytag MVWB835DW
Maytag Bravos XL

Common Causes

The NTC thermistor has failed due to age or exposure to very hot water
Mineral scale has built up on the sensor, causing inaccurate temperature readings
The sensor wiring connector is loose, corroded, or damaged
Incoming water temperature is outside the sensor's measurable range (extremely cold or hot)
The main control board has developed a fault and is misreading the sensor output

How to Fix It

Unplug the washer for 5 minutes to perform a full power reset, then retry the cycle.

A temporary sensor glitch can trigger F4E1. A clean reboot often clears it without any further action.
Run a tub clean cycle or a hot empty wash to remove mineral deposits.

Hard water scale coating the thermistor skews its resistance readings. A hot wash with a tub cleaner tablet can dissolve mild buildup.
Check that the incoming water temperature is reasonable. Run the hot water at a nearby sink for a minute before starting a hot cycle.

If hot water has not been run recently, the inlet water may be cold even on a hot setting. Pre-running the tap warms the supply line.
Inspect the thermistor wiring connector for corrosion or looseness if you are comfortable opening the washer cabinet.

A loose connector causes intermittent resistance readings that can trigger F4E1 randomly. Reseat the connector firmly.
If F4E1 persists after all the above steps, the thermistor has failed and needs replacement.

The part is inexpensive — typically under $40. A technician can confirm the failure with a resistance test before ordering.

When to Call a Professional

If cleaning and resetting do not resolve F4E1, the thermistor needs to be tested with a multimeter and likely replaced. This is a straightforward repair — contact a Maytag-authorized technician or a general appliance repair service.

Frequently Asked Questions

What does the NTC thermistor do in a washing machine?

The NTC thermistor is a temperature-sensitive resistor that tells the control board how hot the water is. The board uses this data to control a heating element (on models with one) and to verify the wash temperature. When the sensor fails, the board cannot trust the temperature and stops the cycle with F4E1.

Will F4E1 affect cold water cycles?

Yes — even on cold cycles, the washer reads the inlet temperature to monitor the system. If the thermistor is completely failed, F4E1 can appear regardless of the selected temperature. A faulty sensor cannot distinguish between hot and cold water.

Can I continue using the washer with F4E1?

It is not recommended. Without accurate temperature sensing, the washer may overheat water or run incorrect cycles. Fix the sensor before using the machine for anything other than a quick cold rinse in an emergency.