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Martin_H
ParticipantRe: AEG Lavamat 2040 TYP F500 E-Nr 605 105 906
Hello Martin,
Further to my last note, I took the time to bench test the motor over the weekend and it ran perfectly in both directions, with a speed varying voltage off the tachometer leads and no excessive sparking from the brushes.
Of course, that’s not to say that there isn’t a latent insulation flaw in the windings after all these years, which may manifest at higher revs (I didn’t let it run away). However, it does rule it out as the immediate cause of the total lack of motor function in service, whatever other issues it may conceal.
The fill/pump, programmer and motor control board all seem fine. Assuming that the pressure sensor is OK (it seems to be), I wonder if one of the other sensors is the problem. Working down the side of the cylinder, there are three, at roughly one o’clock, three and six (looking from the back). The first seems to me to be open circuit on an analogue and digital multimeter. The second is closed circuit and the third has a resistance almost indistinguishable from closed.
They are probably like hen’s teeth to obtain (parts 645 425 351, 645 424 995, 645 424 932, respecively, I believe) but it would be handy to identify any possible culprit and see if there is a suitable substitute available. Incidentally, the water heater element is showing a resistance in the right range.
Meanwhile, my wife has ordered an AEG L87680FL washer for £500 from JL. It won’t be built like an aero engine, like the old washer dryer, but seems like a good buy and I am a fan of a separate dryer, if one has the space/cash.
So, sadly, the 2040 is a project/back-up/scrap, now.
Martin_H
ParticipantRe: AEG Lavamat 2040 TYP F500 E-Nr 605 105 906
Many thanks for coming back to me so quickly, Martin. I should have refreshed the page earlier!!
Good to know that there is no capacitor and that the motor itself is the prime suspect.
An incipient ground fault somewhere in the immediate vicinity of the motor would, presumably, also be consistent with earlier tripping of breakers on high spin. So, probably a bona fide ground fault as opposed to mechanical case contact. Not something one would want to mess with.
Looks like I had better “get a man in” with a PAT tester unless further scrutiny shows something obvious.
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