The washing machine is an LG WD1200D.
After completing a wash normally, the next wash wouldn't drain (made a different beeping noise with four of the lights on the selection dial plus the spin speed settings all flashing).
Water still flowed from the drum into the pump cavity (no problem manually draining the water) and the drain hose was clear. After a bit of googling I decided it was probably a pump failure (the machine is about seven years old and it was suggested pump failures are quite normal at this stage).
Installed the new pump today, put everything together and it did exactly the same thing.
Any thoughts, suggestions?
Thanks.
Ingolf
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.
LG WD1200D would not drain after wash; new pump made no difference
- The problem
- An LG WD1200D completed one wash normally, then on the next cycle it would not drain. The machine gave a different beeping noise and four lights on the selector dial plus the spin speed lights flashed. Water could be manually drained, water flowed from the drum into the pump cavity, and the drain hose was reported clear. The pump did not appear to run when drain was attempted.
- Likely cause
- Most likely an electrical supply fault to the drain pump circuit, such as no power to the pump or no neutral return. A blockage was considered less likely because the pump was apparently not running and the drain hose was clear. The replacement pump itself was effectively ruled out because fitting a new pump did not change the fault.
- What fixed it
- The recommended action was to stop replacing parts without testing and properly diagnose the drain pump circuit. The accepted advice was to check the pump with a continuity tester and confirm whether it is receiving power and a neutral return. As the original poster said they were not able to carry out electrical diagnosis, professional repair or replacement of the machine was the practical next step. The exact repair was not confirmed.
- Checks to try
- Water was manually drained successfully.
- Water flowed from the drum into the pump cavity.
- Drain hose was checked and reported clear.
- A new drain pump was installed but the fault remained.
- The pump was reported as not running when the machine tried to drain.
- Parts or tools mentioned
- Replacement drain pump
- Continuity tester
Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.
4 Answers
Hi. Aye it's not a good idea to replace any part unless you've established it is faulty. With a water pump on a washing machine you do that by testing it with a continuity tester and establishing whether it is being supplied with power and has a neutral return.
Presumably the pump is not running at all. So that would imply there isn't a blockage somewhere, which is the most common reason.
And if you fitted a new pump it rules out the pump being jammed or faulty as the fault is still present. So that leaves the possibility that the pump isn't being supplied with power, or it is but there's no neutral return.
I have a help article that covers all possible causes though it doesn't give detailed guidance on electrical fault finding. That's something that I feel people either know and can do themselves or should get a professional engineer.
Washing machine not draining
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Indeed, Andy, it was a failed punt . . . shortcuts sometimes aren't short!
Yes, in my relative ignorance I'd tentatively concluded that it must therefore be an "electrical" problem. In that field, my ignorance is very nearly total so I shall either have to get somebody in or buy a new one.
Much appreciate your response.
Ingolf
Is the pump definitely not running as apposed to running but not pumping?
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