Miele [F56] fault codewhat it means and how to fix it

F56 is recorded when the speed during the final spin cycle was less than 400 revolutions per minute, and Miele name the cause as excess foam from too much detergent, with the remedy being to follow the dosage guidance. The mechanism is worth understanding because it explains a symptom people find baffling — washing that comes out far wetter than usual with no obvious fault.

Foam cushions. A drum with a head of suds in it cannot get the load to stick to the drum wall and distribute, and the machine will not accelerate a load it cannot balance, so it tries, fails, tries again at a lower speed and eventually gives up somewhere below 400 revolutions. The washing is then merely damp-drained rather than spun. The usual reason for the foam in a British home is a soft water area combined with the dose on the bottle, because those doses are written for hard water.

Miele’s own guidance is to follow the detergent maker’s dosage for your water hardness and soiling level rather than filling the cap. Note this pairs with F16, which Miele use for excess detergent and additives more generally; F56 is the specific consequence at spin time.

1. 1

   Reduce the detergent dose. Start at about two thirds of what you have been using.

2. 2

   Check your water hardness with your water supplier. Dosage guidance is written per hardness band and a soft area needs much less than the cap suggests.

3. 3

   Run a rinse and spin on the current load. It will usually spin properly once the suds have gone.

4. 4

   Open the door and redistribute the washing before that spin, in case a heavy item is also part of the problem.

5. 5

   If it persists at a correct dose with a well-distributed load, mention it to an engineer — at that point the machine rather than the detergent is worth investigating.