Whirlpool Washer Error Code F31 — What It Means & How to Fix It

What Does This Error Mean?

Error code F31 on a Whirlpool washer indicates a fault with the motor control board. The motor control board is responsible for managing how fast and in which direction the drum spins. When this board has an internal failure, it sets F31 and stops the cycle. This is most commonly a board replacement, but a reset sometimes resolves it if the fault was a temporary glitch.

Affected Models

Whirlpool Front-Load Washers
Whirlpool Duet series
Whirlpool WFW series
Whirlpool Cabrio front-load models

Common Causes

A failed motor control board with an internal component failure
A power surge that damaged the motor control board
A failing washer motor drawing excessive current and damaging the board
A loose or corroded connector between the motor and the motor control board
Moisture or heat damage to the motor control board over time

How to Fix It

Unplug the washer for 10-15 minutes and plug it back in. If F31 was triggered by a power surge or a temporary firmware issue, a full reset may clear it. Run a short test cycle to see if the code returns.

F31 is more likely to be a hardware fault than a glitch, but a reset is always worth trying first.
Check the electrical connection between the motor and the motor control board. Access the motor control board (usually located at the bottom rear of the washer) and inspect the wire harness connectors. Reseat any that feel loose.

Always unplug the washer before working inside the cabinet.
Inspect the motor control board for visible damage — burn marks, cracked components, or bulging capacitors. Any visible damage means the board must be replaced.

A board with a burned relay or burst capacitor has failed and cannot be repaired at home.
Have a technician test the washer motor's current draw before replacing the board. A motor that is pulling too many amps will damage a new motor control board within a few cycles. Confirm the motor is healthy before spending money on a board.

A healthy motor draws 4-6 amps at normal speed. A motor drawing 10+ amps is failing.
Replace the motor control board if it is confirmed faulty and the motor tests good. Use the full model number of your washer to find the exact replacement board. Boards cost $100-$300 depending on the model.

The motor control board is typically accessed through the back panel of the washer.

When to Call a Professional

F31 is almost always a motor control board fault. Before replacing the board, a technician should confirm the motor itself is not overloading the board — if the motor is drawing excess current, it will damage the new board too. Motor control boards cost $100-$300. Expect $200-$400 total for a confirmed board replacement.

Frequently Asked Questions

Is F31 always a motor control board issue?

Almost always, yes. F31 is a board-specific fault code that the motor control board generates when it detects an internal problem. However, the root cause may be the motor overloading the board, a power surge, or a wiring fault. Always check the motor and wiring before replacing the board.

Can a power surge cause F31?

Yes — power surges are a common cause of control board failures across all appliances. A surge can destroy a relay or capacitor on the motor control board. If F31 appeared after a storm or a power outage, a surge is the likely culprit. Plug your washer into a surge protector to prevent future damage.

How much does it cost to fix F31?

A hard reset: free. Motor control board: $100-$300 for parts. A technician diagnostic call: $80-$150. Total repair including board replacement and labor: $200-$450 depending on the model.