Dishwasher water inlet lights up – What does this mean?

Wondering why the water inlet signal on your dishwasher lights up? Don’t worry, in this article you will find the appropriate answers to this question. There are several causes that could be the reason. Some of them can even be solved on your own without having to call a specialist.


If you switch on your dishwasher and see a lit warning signal, the water inlet is not working properly. The machine recognises that it cannot draw water, which makes it impossible for it to wash. In order for the water inlet to work again, you must correct the relevant causes that could be the reason for the problem.

In order to fix the causes, you will usually have to pull the dishwasher out of the opening a little. Before doing this, do not forget to switch off the machine and remove the fixings and existing skirting boards. This will not damage your kitchen and will make it much easier to move the dishwasher. Since you often have to look behind the machine to take action, this step is very important.

Also of interest: Have a dishwasher installed – costs & price examples

Possible causes

  1. Water inlet switched off

    One of the characteristic problems is a water inlet that is not turned on. This refers to the tap to which the machine is connected for the water supply. You have to turn it on to supply the machine with water for rinsing. The tap is usually located near the sink siphon and can be turned on anti-clockwise. Less often, it is located behind the dishwasher.

  2. Water inlet leaking

    If the water inlet is turned on but the light is still active, a leaking tap could be the reason. Check the water inlet for leaking water. If you discover water, you must replace the seal. You can either do this yourself or have a professional do it.

  3. Kink in the hose

    If the water inlet is not the real problem, check the hose. It may be kinked. If this is the case, carefully loosen the kink.

  4. Dirty hose

    Dirt and limescale deposits can also be the cause of the problem. Dismantle the hose and clean it well.

  5. Damaged dishwasher electronics

    There may also be faults in the electronics. In this case you need professional help.

David Shaw

David Shaw

Dishwashers expert with over 10 years of experience. He writes articles and shares his knowledge on many sites. Helps you choose the best (portable, countertop, built-in) dishwashers on this site.

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