What WATER INLET 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 THE MESSAGE MEANS ON THE OLDER WMC55 PLATFORM: the problem list gives "Water inlet problem" and the instruction printed beside it is to check that the filter in the machine water inlet is not blocked. That is the whole of Asko's remedy in that book, and it is pointed at one part: the strainer where the hose meets the machine.
WHAT IT MEANS ON THE LATER WMC64P AND WMC743VS PLATFORM: the same message, with a longer procedure. Those books tell you to check that the tap is open, and then to shut the tap off, unscrew the hose, clean the filter in the intake valve, refit the hose and restart the program.
WHAT THE MACHINE WAS DOING: filling. A washer measures the water it takes in, and when the quantity it expects has not arrived in the time it allows, it stops rather than washing a load in too little water. Nothing has leaked and nothing is overheating - the machine simply cannot get what it asked for.
WHY THIS IS THE MOST OWNER-FIXABLE MESSAGE ON THE PROFESSIONAL LINE: because both platforms point outside the machine or at a screen that is designed to be cleaned. In a commercial room the usual causes are duller still - a tap turned off during other work, a hose crushed when a machine was pushed back, or a strainer that has collected scale and grit from a building's supply over several years of heavy use.
CLASSIFICATION: problem, with a documented owner procedure in front of it.
Common Causes of WATER INLET FAULT
- Water tap to the machine closed or only part open
- Inlet hose kinked or crushed behind the machine
- Strainer in the machine water inlet blocked with scale or grit
- Low supply pressure or flow, particularly when several machines fill at once
- Inlet valve or the wiring to it failing
🔧 One Safe Check You Can Try
Check the tap first, because it costs nothing and it is the published first step: the machine's own tap fully open, and no service valve elsewhere left closed after other work in the room. Then look along the whole run of the inlet hose behind and beside the machine for a kink or a crush point, which is the common one where machines stand in a row and get pushed back against their plumbing. To clean the filter, follow the order the manual gives and do not improvise it: close the water tap first, let the pressure off, then unscrew the hose with a towel and a shallow tray underneath because the hose holds water, lift out the strainer in the intake valve, rinse the grit and scale out of it, refit it square, reconnect the hose, open the tap and check the connection for weeping before you start a program. In a hard-water building this is maintenance rather than repair and it is worth writing into the room's routine. If the message returns with an open tap, a straight hose and a clean filter, stop there - the valve, the flow measurement and the wiring are inside the machine, and on a professional washer that means isolating it at the breaker or wall isolator first.
⚠ Why You Shouldn't Go Further Than That
- The tap is closed and the pressure let off before a hose is unscrewed, because a supply hose holds water and a professional installation may be at higher pressure than a domestic one.
- Past the tap, the hose and the inlet strainer, the remaining parts are the valve and its wiring inside the cabinet, which is isolated at the breaker or wall isolator before it is opened.
- Where the machine is shared or commercial, the plumbing and the machine are the responsibility of whoever maintains the room, and working on them without their knowledge leaves nobody able to account for what was changed.
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.