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Miele Washing Machine F138 Error Code: Drum Not Reaching Target Speed

Quick Answer

Miele F138 on W Classic washing machines means the drum could not reach the programmed RPM target. The first thing to check is load balance - an extremely uneven load prevents the drum from accelerating to spin speed, and the control board throws F138 after multiple redistribution attempts fail. Redistribute the load manually and restart.

Miele F138 on W Classic washing machines means the drum could not reach the programmed RPM target. The first thing to check is load balance - an extremely uneven load prevents the drum from accelerating to spin speed, and the control board throws F138 after multiple redistribution attempts fail. Redistribute the load manually and restart. If F138 appears on balanced loads, the machine likely has a worn bearing (audible as a growling noise during spin) or a drive belt issue.

MieleWasherSeverity: moderateDifficulty: intermediate75% DIY Success
Time to Fix
20–180 min
Difficulty
intermediate
Parts Cost
$14 – $80
Tools Needed
Socket set, Circlip pliers (bearing removal)

What Does the F138 Code Mean?

F138 is most commonly seen on older Miele W Classic series (W 4000, W 3000, W 2000 era machines) rather than W1 models. The control unit attempts to balance the load by reversing drum direction multiple times before spin. If balance cannot be achieved, or if the drum mechanically cannot reach speed, F138 is thrown. On machines with 10+ years of use, worn drum bearings are the most common hardware cause - they add enough friction to prevent the motor from spinning up fully.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Unbalanced load preventing drum spin-up40%
Worn drum bearings adding rotational friction24%
Drive belt worn, glazed, or broken14%
Control board speed sensor fault12%
Motor carbon brushes worn down10%

Symptoms You May Notice

  • F138 during spin cycle, drum decelerates and stops before full speed
  • Loud rumbling or grinding during spin before F138 appears
  • Washer completes wash but fails repeatedly at spin
  • Clothes still very wet at end of cycle due to incomplete spin

Can you reset a Miele washer to clear the F138 code?

Press Start/Stop to cancel. Redistribute load or repair hardware fault. Restart cycle. F138 clears when drum successfully reaches spin speed.

Tools Required for Diagnosis

Socket setCirclip pliers (bearing removal)Rubber malletMultimeter

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Redistribute the load and retry

Open the machine and spread the laundry evenly around the drum by hand. Do not wash single heavy items alone - add a few towels to help distribute weight. Close the door and resume the cycle at the spin phase or restart from the beginning.

2

Listen for bearing noise

3

Check the drive belt

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Drum Bearing Set (Front and Rear)Varies by model - verify via drum shaft diameter · $35–$80
Drive Belt4007830 · $14–$30

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $47 (Parts) vs $2100 (New Machine)

Frequently Asked Questions

What causes F138 on a Miele W Classic washing machine?
F138 means the drum could not reach its programmed spin speed. The most common causes are an unbalanced load (most frequent, easiest fix), worn drum bearings (most common hardware failure on machines over 10 years old), and a slipping drive belt. Try redistributing the load first before opening the machine.
Is it worth repairing F138 bearing failure on an older Miele?
Miele machines are built to a 20-year lifespan, so bearing replacement on a 10-year-old machine is generally worthwhile. A bearing set costs $35-80 in parts. The repair requires removing the drum - a 2-3 hour job. If the machine otherwise works well, a bearing replacement extends life by another 5-10 years.

Related Miele Washer Error Codes

Code: HUBMiele Washer Error Codes: Full ListCode: RESETHow to Reset a Miele Washing Machine

Same Fix Works on These Brands

Miele shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience F138 Errors

This repair applies to most Miele washers with this error code. Common model numbers include:

W 4240, W 3621, W 3723, W 2240, W 4000, WDA 110, WDB 120

Last verified for technical accuracy on March 14, 2026