Error E24 on a Siemens dishwasher

Error E24 on a Siemens dishwasher It is very convenient that almost all modern dishwashers can indicate a problem when various problems occur. Error E24 on the machine display informs the user that there is either no drainage at all or there are difficulties with it. This information is not enough to accurately identify the damaged unit, but it is enough to determine the scope of work. Let's check the key components responsible for draining waste fluid into the Siemens PMM.

What could obstruct or block the drain?

First you need to list all possible causes of the malfunction, which should be carefully studied. All of these could cause an error code, which is why it is important to resolve them quickly. You can deal with them even without calling a repair service technician, using a minimal set of tools.

Damage to the drain hose. Quite often, Siemens dishwasher users encounter error E24 due to the fact that their drain hose is damaged or simply squashed. This could happen due to the fact that a heavy object was accidentally placed on it, for example, the dishwasher itself, which crushed the hose and blocked the passage of waste liquid. Remove the heavy load, straighten the sleeve and check that there is no damage to it. Be sure to check the functionality of the equipment after the manipulations performed - this will help you understand whether the drain has been restored or whether you need to move on to the next reason.
The garbage filter is clogged. This often happens in a situation where pieces of food, bones from meat and fruit, napkins, fragments of broken dishes and other debris actively get into the filter element.Cleaning the filter will help reset the E24 error, which should preferably be done at least once a month.

Always try to first clean dirty dishes from food debris and other contaminants so that they do not cause clogging.

The pump and drain pipe are clogged. Another key component of the Siemens dishwasher that can become clogged due to pieces of food and other debris. If this happens, the water will collect in the pan instead of going down the drain.
Failure of the control board. The control module transmits commands to all key components of the dishwasher, so if it is faulty, the drain simply will not start.

Most often, Siemens dishwasher users see error code E24 precisely because of these four reasons. We will analyze in detail the procedure that will help reset the fault.

Let's start with the main filter element

What to do in a situation where the filter is clogged? This problem may seem difficult to fix, but in fact, cleaning the filter is the most basic procedure that we will describe today. You just need to perform the classic cleaning of the garbage filter, which the manufacturer advises to repeat regularly. But after error E24 appears, you first need to remove the liquid from the washing chamber that remains as a result of lack of drainage.

Take a large container for water.
Disconnect the hose.
Start draining.

This will help not only drain the water, but also evaluate the pipe along with the sewer for blockages. Once the liquid has been eliminated, you can begin cleaning:

Disconnect your Siemens dishwasher from all communications.
Remove the dish baskets from the hopper.
Reach the debris filter installed at the bottom of the hopper and remove it from its seat.
A mesh filter is installed under it, which also needs to be removed to remove debris.
Use a brush and hot water from the tap to remove dirt.

If debris has become embedded in the filter elements and cannot be removed, you can use a solution of citric acid or table vinegar to soak the filters for several hours.

Install all elements into their seats.

Be sure to run a test work cycle without any utensils to check whether the E24 error goes away or not. If there are still problems with the drain, then we move on to studying other components of the Siemens dishwasher.

The pump is not working correctly

If the hose and debris filter are checked, the error code may be coming from the pump. To check the pump, you will have to disassemble the device, which is best done in a situation where the warranty period has already passed. If there is no longer a guarantee, then proceed with partial disassembly, carefully following the instructions.

Disconnect the machine from the power supply and water supply.
Tilt your Siemens dishwasher slightly on its side - this will help remove any water that remains in the system after the last cycle.
Wipe the dirt filter with a sponge or cloth to remove moisture.
Place the machine on the back wall.
Unscrew the latches holding the bottom cover of the “home assistant”.
Disconnect the leakage sensor installed on the bottom of the machine on the back side.
Remove the pump by first disconnecting the wires from it and unscrewing the fasteners.

It's better to take a few photos of the wiring before disconnecting it, so that you can save an example of how to properly connect the wires in the memory of your camera or phone.

There are two ways to check the pump. First, you should carefully examine the impeller. Its blades could simply break over time, or fragments of broken dishes could get into them, which blocked the movement of the element.

Secondly, you need to take an ordinary multimeter set to resistance measurement mode. Connect the probes of the device to the pump contacts and evaluate the results obtained. If everything is in order, the data will be about 200 ohms. If the impeller is damaged, or the tester shows incorrect values, then the pump must be replaced with a completely new one.

If everything is in order with the pump, or if after replacing it the drain does not start working normally, then it is still necessary to examine the pipes at the outlet of the circulation block. These elements also often become clogged, which causes a lack of drainage. If everything is in order with them, then only the Siemens PMM control board remains.

The problem is hidden by the PMM electronics

The last point of today's check is the control module of the “home assistant”. It is the electronic unit that is considered the “brain” of the entire system, on which the performance of all household appliances is tied. Therefore, repairing such a complex element is possible only with the help of special equipment, and only by a qualified craftsman. It is only recommended to check the module yourself to make sure there is a problem. Siemens dishwasher control module

Open the siemens dishwasher bin door.
Remove the latches from the door.
Find the control board.
Inspect it carefully to find burnt wiring and damaged tracks.

Even if damage cannot be detected with the naked eye, this does not mean that it does not exist.That is why, if you suspect electronics, it is better to call a service center specialist so that he not only restores the operation of the electronic module, but also conducts a thorough diagnosis. Never try to repair the part yourself, otherwise you risk accidentally damaging it even more, which will only increase the cost of repairs.