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Whirlpool Washer Error Code F06 (Motor Speed Sensor)

F06 means the control board lost a reliable speed signal from the motor or drum, most often a loose connector or worn belt.

Risk: Moderate

Meaning

F06 appears when the control board stops getting a consistent speed signal from the motor or drum. The washer stops rather than keep spinning without that feedback.

On belt-driven Whirlpool washers, the speed sensor sits on the motor and reads the belt’s rotation, so a belt that has slipped off its groove or stretched past spec throws the same fault as a loose connector would. Check the belt visually under good light before assuming anything electrical is at fault, a belt that’s glazed, cracked, or hanging loose is easy to spot without a multimeter.

The information provided here is a diagnostic aid and does not replace the intervention of a qualified professional.

Possible causes

No cause is certain until it has been checked on the appliance.

Likely Worn or loose drive belt
Possible Speed sensor connector loose or corroded
Rare Failing motor or power control board

Tools needed

Flat screwdriver
Multimeter
Flashlight

First checks

Unplug the washer and check belt tension under the drum.
Check the speed sensor (tachometer) connector on the motor.
Turn the drum by hand and feel for a stiff spot or listen for an odd noise.

Step-by-step diagnosis

Unplug the washer, then remove the rear panel.
Check the belt: no cracking, no glazed shine on the inner face. A finger slipped under it should not lift it more than about an inch.
Turn the pulley by hand. Rotation should be smooth, with no stiff spot and no bearing rumble.
Unplug the tachometer connector on the motor and measure its coil with the meter. Expect tens to hundreds of ohms depending on the model; zero or infinite means the coil is finished.
Reassemble, plug in, and run a short spin while listening. A motor that revs then cuts out abruptly points at the tachometer rather than the belt.

What not to do

Running repeated empty spin cycles just to test the fault.
Tightening or repositioning a worn belt instead of replacing it outright.

When to stop

The motor stays silent and the brushes are worn down to the spring. Pulling the motor is beyond a straightforward home repair.
There is a burning smell around the motor or the control board.

An error code varies by brand

The same code can have a different meaning depending on the brand and model. Always check your appliance's manual before acting.

Related guides

When to call a professional

If the simple checks turned up nothing, if the repair involves electricity, gas, or the sealed refrigerant system, or if you have any doubt at all: stop there and hand the appliance over to a qualified technician.