Bosch washing machine does not drain

If the washing machine does not drain, this may not be a trivial problem. There’s a lot to check before finding the true cause of the malfunction, locating it, and then fixing it. In this publication, we will tell you how to determine where to look for a problem by the external signs of a breakdown, tell you what details you will have to remove and how to check them without resorting to the help of a wizard. We hope it will be interesting.

It's all about blockage

As soon as you find that your Bosch Maxx 5 washer or any other machine generates a water drain error, you must restart the technique and see at what stage this error pops up. Here you need not only to watch, but to listen. If the pump works, the drain is on, but it is too slow, an error pops up due to the fact that the system cannot remove dirty water from the tank in 10 minutes. In this case, the reasons are the whole list:

• blockage in the pipe between the pump and tank;
• blockage in the sewer;
• siphon blockage;
• blockage in the trash filter;
• the pump is clogged.

In slightly rarer cases, the machine cannot remove water on time due to a broken impeller. As a result of a manufacturing defect or for another reason, the wings break and the pump, although it is functioning, cannot pump water effectively. We will check everything. Let's start with a simple, garbage filter.

If you don’t know what the trash filter is and have never cleaned it, it is probably the cause of the problem. At the front in the lower right corner of the body of the Bosch Maxx 4 washing machine or any other, there is a small hatch. Open the door, and behind it is a large black cork. Place a rag, or rather, substitute a small basin and unscrew the cork.

Be careful! When opening the trash filter plug, be prepared for dirty water to pour out.

Inspect the inside of the trash filter and the plug itself. Remove dirt, hair rolls, hairpins, coins, and more from there. Wipe the inside with a cloth and screw the stopper into place until the end. If the problem persists, you need to climb further. Check how quickly dirty water drains into the sewer. Open the tap to full and see. If the water leaves poorly, a blockage may have formed in the siphon or sewer. Having cleaned the blockage, you will solve the problem with the machine.

If the drain does not work, the cause may be a clogged drain hose that goes from the washing machine body to the siphon fitting. Carefully remove the hose from the fitting and check for blockages. Clogged hose is cleaned with a wire or punched with hot water.

At the next stage, we begin to look for damage already in the bowels of the washing machine. Front you need to unscrew and remove the narrow front panel, which is located just under the front of the washing machine. We check the nozzles, the pump finds a blockage or a foreign object and remove it. After that, of course, we collect the machine. If partialdisassembly of the washing machine Bosch causes you difficulties, read the article of the same name, previously laid out on our website, and we go further.

The pump is out of order

Similar symptoms are demonstrated by a broken drain pump. It can buzz, but not drain water or not buzz at all, then it is very simple to localize the problem. We get to the pump and check its coil with a multimeter. If the unit does not ring, you can safely change it to a new one. If it rings, but does not work normally, you can disassemble it and see the causes of the malfunction, but it is better not to bother and make a replacement.

Purchase only original spare parts. It’s better to overpay a little for a Bosch branded pump than to repeat the repair after a few months, risking to buy Chinese parts. Maybe they will last some time, but most likely, you will throw money away.

Problem with firmware

It so happens that the Bosch machine does not squeeze out or drain dirty water, although there seems to be no blockage, and the pump is functioning normally. What then is the “buried dog”? Often on Bosch brand washing machines of the Russian assembly, errors occur in the firmware of the electronic module. Such errors can occur in different ways, for example, block the operation of the drain pump.

We would strongly recommend that you reflash the control module with your own hands. This will only exacerbate the problem.

What to do in such a situation? Of course, you need to entrust this business to a professional. The wizard will test the electronics, reset the firmware and restore the system. Usually an event takes from 20 to 40 minutes of time. In especially serious cases, you need to update the firmware, but do not worry, this is not much longer. Replacing the control module in this situation is not required, so you will get by with a little blood.

So, in most cases, the problem with poor drainage is solved independently. You just need to look very carefully at how the washing machine will behave, locate the malfunction, and then fix it. Especially do not have to disassemble. All problematic elements can be reached relatively easily. Difficulty may arise with firmware, but solving this problem yourself is very difficult. It is better to contact the master!