What SECURITY FAULT Means
WHICH MACHINES THIS APPLIES TO: Asko's professional washers - the WMC-series machines installed in communal laundry rooms, care homes, salons, gyms and small commercial laundries - do not report problems as numbers. They print the problem on the display in words. Two document families stand behind the messages on this site and they are deliberately kept apart, because they are not the same book and they do not use quite the same wording.
THE OLDER PLATFORM: the Asko service documentation for the new generation of washing machines whose circuit diagrams are labeled WMC55. Its problem section states that if a problem occurs during a program cycle it is shown on the display after the program has finished or been interrupted - which is worth knowing, because on this platform the message often appears at the end rather than at the moment something went wrong.
THE LATER PLATFORM: the operating instructions for the WMC64P and the WMC743VS, which both state that a message is shown on the display if an error occurs during the program. The message set in those two books is identical to each other, which is good corroboration of both.
A LIMIT WORTH STATING: no public document could be found under the model numbers WMC6743 or WMC6744. The messages here are attributed to the books they were read in and are not claimed to cover those models.
ONE PRACTICAL NOTE BEFORE ANY CHECK: a professional washer is usually hard-wired rather than plugged in, so isolating it means the breaker or the wall isolator that feeds it, not a plug. And in a communal or commercial room the machine belongs to somebody else. If that is your situation, the checks below are for the person who looks after the machines, and reporting the exact wording on the display is the most useful thing a user can do.
WHAT ASKO PUBLISHES: the message "Security problem", in the error tables of the WMC64P and WMC743VS operating instructions, with the action given as calling the service division. That is all. Asko does not print what the problem is, which part reported it or what condition produced it.
WHAT THIS PAGE WILL NOT DO: guess. The word "security" invites several readings - a safety circuit, a protective device, a locking arrangement - and choosing one and presenting it as the meaning would be exactly the kind of invention that makes code lists untrustworthy. No third-party source publishes a meaning for it either; this string does not appear on any of the repair sites that cover Asko, because none of them has read this book. So the honest position is that the string is real, it is documented in two independent Asko books that agree with each other, and the meaning behind it is not public.
WHAT CAN BE SAID WITH CONFIDENCE: the machine has stopped or refused to proceed and has been told by its manufacturer to hand this to a technician with no owner action in between. Of the ten or so messages in those books, most come with something to check. This one does not, and that is itself a signal about how Asko regards it.
WHAT A TECHNICIAN DOES INSTEAD OF READING A CODE LIST: on a platform where the message set is documented but this particular meaning is not, the problem is identified from the machine - the service information for that model, the state of the protective and locking circuits, and what the control reports internally - rather than from a table. That is the whole reason this is service work.
CLASSIFICATION: problem, meaning not published by the manufacturer.
Common Causes of SECURITY FAULT
- Asko does not publish what this message reports, so no cause list can honestly be given for it
- The machine has been told by its own manual to hand the problem to a technician with no owner check in front of it
- What a technician establishes on the machine, from model service information, is what identifies the part
🔧 One Safe Check You Can Try
There is no owner check for this message, and that is not a hedge - Asko publishes the message and an instruction to call, with nothing in between. Take the machine out of service so nobody starts another load, and in a shared room put a notice on it as well as switching it off. If a load is shut inside with water, empty the machine the way the manual for your platform allows and leave the drum empty. Then collect what is worth knowing, which is more useful here than usual precisely because the code says so little: the exact wording on the display, what the machine was doing when it appeared, whether it appears at start-up or partway through a program, whether it clears on a power cycle and comes back, and anything that changed in the room recently - electrical work, a machine moved, a flood, a very heavy run of use. Isolate the machine at its breaker or wall isolator if it will be standing. Do not open the cabinet looking for the problem, because there is no published meaning to look for and nothing an owner could safely measure if there were.
⚠ Why You Shouldn't Go Further Than That
- Asko publishes no meaning and no owner action for this message - only an instruction to call the service division.
- A problem whose meaning is not documented cannot be narrowed from outside the machine, so opening a cabinet at mains voltage would be guesswork at a professional installation that is hard-wired rather than plugged in.
- In a shared or commercial room the machine belongs to whoever maintains it, and an undocumented problem is exactly the kind that needs to be recorded rather than experimented with.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.


