Whirlpool WWDC9440 F06 fault-tried everything!

Hi,

On many Whirlpool washer-dryers an F06 is often related to the motor circuit or speed feedback, but I would not jump straight to condemning the motor if the brushes are still good. There are a few other common causes worth checking first.

1. Isolate the appliance from the mains before removing any panels or plugs.

2. Recheck the motor brushes properly: - Make sure they slide freely in the holders. - Check spring pressure is good. - Confirm they are bedded in correctly on the commutator and not chipped or sticking.

3. Inspect the commutator on the armature: - Look for heavy burning, blackening, pitting, or raised segments. - If badly worn, the motor can still fail even with decent brushes fitted.

4. Check the motor plug and wiring loom all the way back to the main PCB: - Look for loose pins, overheating, broken wires, or corrosion. - Pay particular attention where the loom flexes and near the motor connector.

5. Check the tacho coil on the rear of the motor: - Make sure the magnet is secure and the coil is not loose or damaged. - A failed or intermittent tacho can cause a motor-related fault even when the motor windings test OK.

6. If you have a meter, compare resistance of the tacho and motor windings and check for insulation faults to earth if possible. Simple continuity alone does not prove the motor is healthy.

7. If all of the above checks out, the fault could be on the motor control/main PCB rather than the motor itself.

At six years old it is still worth diagnosing properly before replacing major parts. If you are not confident with live electrical testing or PCB diagnosis, it is best to get a qualified appliance engineer in.

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