Peter Moroney
Hi I have a Logik Washing Machine , it switches on and sounds like it's trying to start a cycle , it seems to be trying to pump out all the time then E21 for blockage shows but I have check the filter at the pump the hoses the filter on the inlet what's my next move please
Solution Summary
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This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Logik washing machine shows E21 after draining and stays in pump-out mode
- The problem
- A Logik washing machine powered up and appeared to try to start a cycle, but kept running the drain pump and then showed E21 for blockage. The pump filter, hoses and inlet filter were checked by the owner. When the machine was filled with water and set to Drain, it emptied the water properly but still displayed E21 and would not run other programmes.
- Likely cause
- Most strongly supported diagnosis is a fault in the pressure sensing system that tells the machine whether water has emptied. The discussion suggests a blocked pressure chamber or hose is a common cause, but the owner reported the pressure switch hose and chamber/cylinder were clean. A faulty pressure switch was then considered likely, although wiring/connection faults or a PCB fault were also mentioned as possibilities. The exact failed part was not confirmed.
- What fixed it
- Recommended action was to investigate the pressure system rather than the drain pump, and if replacement was attempted, to identify the correct pressure switch by the machine’s exact model/product details. No confirmed repair was reported.
- Checks to try
- Pump filter checked
- Hoses checked
- Inlet filter checked
- Machine filled with water and tested on Drain cycle
- Machine drained water successfully before showing E21
- Pressure switch, hose and chamber/cylinder inspected and reported clean
- Parts or tools mentioned
- Pressure switch
Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.
5 Answers
Hello Peter. If the error E21 means that the washing machine pump is blocked, and it isn't then it is likely there is a problem with the sensing system that detects whether pump is blocked or not. This is called a pressure system, and it is quite common for them to get blocked with gunge. Then the washing machine may not receive a signal that the water has gone and the washing machine thinks it is still full of water. It would then refuse to spin. If this is the case though when you put it to spin only cycle it should time out with the same error. Can you check what happens if you just put it on the spin only cycle?
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Hi Andy thanks for the reply it seems to be stuck in pump out mode , I filled it with water today , put it on Drain and it emptied it no problem then up came E21 . Would not work on any other setting but sound like still in pump mode ???
Hello Peter. Yes it still sounds like the same issue that I described in my first reply. If it is telling you that is failing to drain the water but you can clearly see that all the water is being pumped away then the fault lies in the system that detects when the water has gone. That's the pressure system that I mentioned.
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Thanks Andy , yes I had a look at the pressure switch and hose and cylinder at the end . I heard it can get blocked stopping the air pressure . But it's as clean as a whistle . So It must be the switch itself . Are all Logik pressure switches the same type , Thamks Andy
Hello Peter. You would have to make sure you are using the right one by checking it on a spare site like Ransomspares. If there are different once fitted to different models you will be told to enter the product number or serial number to check which one you need. Pressure switches are pretty reliable but the new ones are a sort of magnet inside a coil and different to how they always used to be manufactured and designed. I don't know yet whether they are more or less reliable. If you are sure that the error code means that the water hasn't pumped away and there is definitely no blockage then the pressure switch could be the problem though you would have to be prepared for it to not be as it could also potentially be connection problems or even potentially a fault on the PCB.
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