Beko WTG741M1B unlocking issue
Hi all
We’ve got a ~30 month old Beko WTG741M1B which won’t unlock after finishing a cycle.
The machine appears to drain correctly, I’ve checked the impeller spins by opening up the cap used to clear obstructions and watching it spin on a drain cycle. I can also feel hot water leaving the hose and entering the trap under the sink.
The machine unlocks if switched off at the wall and there doesn’t appear to be any water left in the drum on doing so.
Can anyone suggest anything else to check before we resort to calling someone out to fix?
Thanks in advance
Tom
Solution Summary
AI-generated from this discussion
This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Beko WTG741M1B stays locked at end of cycle until power is switched off
- The problem
- A Beko WTG741M1B washing machine completed cycles and appeared to drain normally, but the door would not unlock at the end. The door unlocked when the machine was switched off at the wall, and there was no obvious water left in the drum.
- Likely cause
- The strongest diagnosis in the discussion was that the door lock was remaining energised after the cycle finished, likely because the controller was not removing power from the door interlock. A jammed lock was mentioned as a possibility, but the fact it released when unplugged pointed more towards the control side than a purely mechanical jam.
- What fixed it
- No confirmed repair was posted. The accepted advice was diagnostic: confirm the machine had fully finished and note that, because the lock released when mains power was removed, the fault was probably the controller keeping the door lock powered. Further diagnosis should be carried out by a suitably qualified appliance engineer.
- Checks to try
- Drain pump impeller was checked and seen spinning on a drain cycle
- Hot water was felt leaving the drain hose and entering the sink trap
- Machine was tested on a spin-only cycle
- Display behaviour was observed: it showed 'end' on spin, then the message disappeared after a couple of minutes while the door remained locked
- It was confirmed the door unlocked when switched off at the wall
Safety: Do not bypass the door interlock. Further diagnosis should be carried out by a suitably qualified appliance engineer.
3 Answers
Hello Tom. Very strange. If it unlocks when you unplug it from the wall then the problem must be associated with the controller not removing power from door lock when it it has finished a cycle. Does it do the same after a spin only cycle? And also when it has finished and refuses to unlock the door, can you see that it has definitely finished properly is not stuck on something?
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Hi Andy
Thanks for the response.
Yeah it happens on any cycle.
On a spin cycle the screen will display “end” when it finishes but then the end disappears after a couple of minutes and it refuses to unlock. On other cycles the timer counts down and the light indicating the cycle has finished illuminates but the screen doesn’t display anything when it should say end.
Thanks
Tom
Very annoying fault. The door lock is normally a bi-metal device. When power is given to it a coil inside warms up a bi-metal strip which bends. When it bends it makes an electrical contact and puts a peg in place that stops the door from opening.
So when it’s finished the cycle power is cut from it. The bi metal strip cooked down over a couple of minutes and returns to its straight position. This removes the block on opening the door.
If the door lock jams that’s a fault inside the door lock. But if it unjams when the machine is unplugged it suggests it’s staying locked because it’s still being energised.
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