Korting dishwasher error E4

Almost every Korting dishwasher user has experienced a situation where, at some point during the cycle, the dishwasher simply interrupts the wash cycle and stops responding to any commands. If the dishwasher constantly attempts to drain water through the drain pump and the display shows an E4 error, this indicates the Aquastop system has been activated. Let's take a closer look at this issue, its causes, and what can be done about it.

First, let's find out what this code is.

Error E4 informs the housewife that liquid has entered the appliance's tray, which is why the Aquastop protection system has been activated. In this case, the Korting dishwasher will start the drain pump to urgently pump out water from the tray.

If your "home assistant" doesn't have a display and can't display an error code, the device will indicate the problem with a flashing indicator on the control panel, which looks like a wine glass or shot glass. Also, the E4 error on some Korting devices with a display may appear as "E04."

E4 was triggered by something simple

Sometimes the E4 error is caused by something less serious, unrelated to a malfunction of the appliance's internal components. If this is the case, you can fix the problem yourself, even without calling a technician. What should you do?

• There may be a leak in the plumbing lines that directly affect the performance of your appliance. It's worth examining the Korting dishwasher's inlet hose. You can also check the dishwasher tray; water may have accidentally leaked into it after a spill on the countertop and then seeped through cracks into the dishwasher.
• The machine's filter may be clogged, which typically leads to poor water circulation during operation and overflowing of the wash chamber, causing liquid to seep into the tray and trigger the Aquastop. If this is the cause of the E4 error, cleaning the filters is sufficient, as detailed in the Korting dishwasher user manual.
• It's likely that household cleaning products for hand washing dishes were used. This is prohibited, as if regular detergent, such as Fairy gel, gets inside the dishwasher, it will cause excessive foaming in the wash chamber. This will cause the foam and water to flow into the tray, triggering the Aquastop protection system and an E4 error. If this occurs, to resolve the issue, you will need to immediately unplug the dishwasher and let it sit for a couple of days to dry.

Excessive foaming is very dangerous because it can also affect the dishwasher's control unit and cause it to malfunction. Therefore, under no circumstances should you use ordinary household chemicals when washing dishes automatically.

• Poor-quality detergents, manufactured without proper safety precautions, may have been used. This can also lead to increased foaming and liquid leaking into the tray.
• Water is backing up directly from the sewer. Most often, the Korting dishwasher drain is connected to the sink's siphon, which occasionally becomes clogged. If this happens, instead of draining the wastewater into the sewer, the water will flow back up the drain hose. This will cause an overflow, trigger the Aquastop, and the machine will display an error code E. The solution is simple: clear the blockage from the siphon and install a check valve on the dishwasher's drain in the future.

The easiest way to remove excess water is with a dry cloth, after pulling the Korting dishwasher out for easy access. Alternatively, you can drain the water from the tray by tilting the appliance backward. Finally, you can simply wait a couple of days for the liquid to evaporate, but this isn't practical if you only use the dishwasher once a day or more.

The tightness of the joints has been broken

The reason for the overflow of the pan may be hidden in the weakening of the connecting clamps, as well as in the increased wear of the sealing gasket and oil seals. In addition, the problem often lies in solid food residues that damage the pipes and hoses of the “home helper”. Most often, this applies to drain hoses, as well as hoses responsible for water circulation, and less often to inlet hoses.

Korting dishwashers also often suffer from the drain pump seals drying out. If this happens, liquid will leak from the point where the pump connects to the drain system.

To fix the problem, you'll need to partially disassemble the machine and carefully inspect all joints for potential leaks. If the seals, clamps, and other components are indeed at fault, you'll need to replace them with new ones to prevent the E4 error code from reoccurring.

The leak sensor is broken

A malfunction could also have troubled a housewife after the Aquastop sensor itself failed, becoming stuck in the leak detection position. This usually occurs due to a faulty microswitch—a small, fragile component that can stop even dust and small particles of grease.

To reset it, you can try gently cleaning it of any dirt, but this is often a waste of time. It's much easier and more effective to simply replace the microswitch, which requires removing the pan and installing a new one.

Problem with the seal

Another common problem that needs to be checked is the rubber seal on the washing chamber door. With heavy use, this element can dry out and stop providing insulation. If this happens, water will leak through the door, dripping onto the floor and into the tray, triggering the Aquastop sensor.

Fixing the problem is very simple – you just need to buy a new rubber element and install it in place of the damaged one.

Let's pay attention to drainage

Finally, water may leak because the hose connections to the drain pump or the sink trap have become loose over time. In addition, the hose could simply have cracked in several places, which caused the leak.

To fix the problem, simply tighten the drain hose connections or replace it with a new part.

   

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