Miele Washing Machine F138 Error Code

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.

In my fifteen years of servicing Miele units, I usually see this code on the legendary W Classic series once they hit the ten-year mark. While it's often just a heavy bath mat that threw the balance off, it's also frequently the first warning sign that your drum bearings are starting to drag. If your machine sounds like a jet engine taking off before the code pops up, you're looking at a mechanical resistance issue, and ignoring it will make things way more expensive.

MieleWasherSeverity: moderateDifficulty: intermediate75% DIY Success

Time to Fix

20–180 min

Difficulty

intermediate

Parts Cost

$14 – $80

Tools Needed

Phillips #2 screwdriver, Flat-head screwdriver for panel prying

What Does the F138 Code Mean?

Miele software is incredibly sensitive to rotational drag. Before the F138 triggers, the machine oscillates the drum back and forth trying to settle the laundry. If the motor draws too much current or the speed sensor sees the RPMs lagging behind the target, the board cuts power to protect the drive system. It's a safety measure to prevent the motor from burning out against a heavy or seized load. Honestly, it's one of the smarter fault codes I see on these machines.

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

The drum accelerates, slows back down, tries to spin up again two or three times, then F138 appears and the whole cycle stops dead.
A loud rumbling or grinding that kicks in during spin, kind of like there's a handful of gravel rolling around somewhere inside the machine.
Clothes come out absolutely soaking wet because the drum never made it to actual spin speed and just gave up partway through.
Machine runs the entire wash cycle without any issues but then fails at the exact same point every single spin attempt, like clockwork.
You can actually hear the motor straining way harder than normal right before the code throws, especially noticeable on heavier loads.

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

Turn the selector dial to the Off or Finish position to clear the active fault. Unplug the unit for sixty seconds to let the capacitors on the power board discharge fully. Once you plug it back in, don't just restart the program you were running. Try a dedicated Spin-only cycle with a small balanced load. If it reaches top speed without throwing the code, the electronics are fine and you had a temporary balance or load issue.

Tools Required for Diagnosis

Phillips #2 screwdriverFlat-head screwdriver for panel prying10mm and 13mm socket set with extension barCirclip pliers, internal type, for drum bearing snap ringRubber malletBearing press or long-bolt DIY press kitDigital multimeterOld towels and a shallow bucket for residual tub water

Diagnostic Checklist

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

ComponentComponent Under Test

Expected Range100–180 ohms

ConditionIf Open (OL) or infinite, replace component.

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	OEM Number	Estimated Price
Drum Bearing Set (Front and Rear)Varies by model - verify via drum shaft diameter · $35–$80	Varies by model - verify via drum shaft diameter	$35 – $80
Drive Belt4007830 · $14–$30	4007830	$14 – $30

Frequently Asked Questions

What causes F138 on a Miele W Classic washing machine?

F138 is the machine's way of saying it's struggling to spin the drum up to speed. Unbalanced load is the most common culprit and it's worth ruling that out first since it takes thirty seconds to fix. But if you're seeing it repeatedly on an older machine, don't overlook the motor brushes. If those carbon brushes are worn down to almost nothing, the motor won't have the torque to push through the final spin ramp-up. Check the laundry first, then listen for bearing noise, then check the belt tension.

Is it worth repairing F138 bearing failure on an older Miele?

Absolutely, yes. These W Classic machines were built like actual tanks and I still see them running perfectly after twenty or twenty-five years. If the rest of the machine is clean and you don't have leaks or other fault codes stacking up, spending a few hours on a bearing job makes a lot of sense. You're basically resetting the clock on the single most common mechanical failure point in front-load washers. A bearing kit runs about sixty bucks, and compared to the price of a new Miele W1, that's pretty much nothing.

Can I keep using the machine when it's showing F138?

Honestly, it depends on what's causing it. If it's just an unbalanced load, sure, redistribute and keep going. But if you're hearing grinding or rumbling before the code appears, stop using it. Running a Miele with failing bearings is one of those things that turns a two-hundred-dollar repair into a thousand-dollar disaster real fast. The friction from worn bearings can actually weld the inner race to the drum shaft, and then you're looking at a full drum basket replacement. I've seen it happen. It's not pretty, and it's completely avoidable.

How long does a Miele W Classic bearing replacement actually take?

Plan for a full Saturday if it's your first time. It's not a beginner job. You need to strip the machine down pretty far to get to the outer tub, then press out the old bearings with a rubber mallet or bearing press. The actual bearing swap takes maybe an hour once everything's apart, but getting there and reassembling is where the time goes. If you've done appliance work before and you're comfortable with circlip pliers and a mallet, a couple of focused hours is realistic.

What does it cost to have a tech fix F138 on a Miele?

For a load balance issue, a service call is overkill, just redistribute the laundry yourself. For a belt replacement you're looking at around a hundred fifty to two hundred dollars for parts and labor. Bearing replacement runs four to six hundred dollars at a shop because of the labor involved in tearing the machine down. Motor brushes are cheap parts but the labor to access them adds up, figure around two hundred dollars. If you're handy with tools, doing the bearings yourself saves serious money on a machine that's genuinely worth keeping running.

Related Miele Washer Error Codes

Code: HUBMiele Washer Error Codes: Full List Code: 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

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 14, 2026