AEG Washer Error Code C1

C1 on an AEG washer signals a water inlet fault. The machine has detected that water is not entering the drum correctly, which can be caused by a closed water tap, a blocked inlet filter screen, a faulty inlet valve, or a leak in the air trap pressure sensing system. The washer will not proceed with a cycle until the fault is resolved.

A reset may temporarily clear the C1 code, but it will return at the start of the next cycle if the underlying cause has not been corrected. The machine needs to detect proper water flow before it will run normally. Fix the supply, filter, valve, or air trap issue first, then restart the machine.

If the fix is simply opening the tap or cleaning the filter screens, there is no parts cost involved. Replacing an inlet valve typically runs in the range of $25 to $80 for the part, depending on the model. If the air trap or pressure hose needs replacement, parts costs are generally in the $10 to $40 range. Professional labor charges will add to these figures if a technician is hired.

Start by making sure the water supply tap behind the machine is fully open. Then disconnect the inlet hose and clean the mesh filter screens at the connection point. If the error persists, the inlet valve may need to be tested and replaced. Also inspect the air trap hose for cracks or loose connections, as a faulty pressure sensing system can produce this code.

The washer will typically stop the cycle and not operate normally when C1 is active, so there is no immediate safety hazard from attempting to run it. However, you should not force repeated cycle attempts without addressing the fault, as running without proper water flow could stress components. Resolve the water supply or valve issue before regular use.