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Thread Number: 67471
/ Tag: Modern Automatic Washers
VMW OOB? |
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| Post# 901951 , Reply# 1 10/5/2016 at 22:48 (2,753 days old) by Murando531 (Augusta, Georgia - US) | ||
It depends what model you have. Does your machine have a water level selector on it or is it completely automatic fill sensing?
On the WTW4800 I have/had, those two quick spins at the start of any cycle selection are just a formality, because they use the same control board across all versions of the VMW lineup. Basically, it's "sensing", but because the water level selector overrides any readings the machine took, they're just dumped. Same for the Spin Only selection. As far as I know and have learned with testing, the quick spin tests at the beginning are only used to determine water level on the Auto Fill models, but has nothing to do with sensing load balance. Instead, because the motor has two speeds, it may decide to stick to the low speed spin instead of the fast final spin, because it can determine off balance during the actual spin process by readings from the RPS sensor, because the tub is taking too long to reach full speed or because it's slowing down much too quickly when the motor stops. | ||
| Post# 902032 , Reply# 3 10/6/2016 at 13:49 (2,752 days old) by vacerator (Macomb, Michigan) | ||
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Mine is an impeller type, and it has on rare occasion, tried to spin, couldn't, so re-filled with some water, agitated to balance the load, then drain and try to spin again, up to three times once in fact. | ||
| Post# 902133 , Reply# 4 10/7/2016 at 12:45 (2,751 days old) by murando531 (Augusta, Georgia - US) | ||
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It -can- detect off balance loads during the spin, because it will sense that the motor is unable to accelerate in the usual time it takes to reach speed. However, I'm not understanding how the comforter could be so severely off balance if loaded properly. Comforters/quilts are usually so large that by the time it's fully in the machine, there's enough material all around the agitator that the spin may gyrate the tub more but not enough to bang the cabinet or prevent reaching top speed. Was the majority of the comforter balled up to one side when the off-balance occurred?
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| Post# 902182 , Reply# 5 10/7/2016 at 18:38 (2,751 days old) by wishwash (Indiana) | ||
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Not necessarily. There was more material on one side than the other, but not so much that it should bang around like that. I'll have to try it again, but it sure sounds like it's going to shake itself to pieces. I'm curious to see if it would try to fill and redistribute as well. | ||
| Post# 902331 , Reply# 7 10/9/2016 at 00:11 (2,750 days old) by Johnb300m (Chicago) | ||
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| Post# 902339 , Reply# 8 10/9/2016 at 02:06 (2,750 days old) by Murando531 (Augusta, Georgia - US) | ||
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I love how they never made an attempt to show the "action" with the lid open. Something about that video seemed a bit exaggerated and unrealistic. I need to see under the hood of it doing this before I believe it. There's just physically no way. Even if one of the suspension rods were broken, the tub wouldn't be sitting perfectly centered like that.
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| Post# 902340 , Reply# 9 10/9/2016 at 02:16 (2,750 days old) by Murando531 (Augusta, Georgia - US) | ||
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These machines are actually hard to off-balance. When I had the 4800 in use, I even tried a few times to move towels to one side, and because of the balance rings it of course would gyrate more but was still able to spin at max speed with only slight and reasonable vibration to the cabinet. The Oasis is even more difficult to throw off because of the more intricate sensing capabilities in addition to having two full balance rings on top and bottom.
Something about that video irks me because of how outlandish it is. That's the kind of washer walking only found in cartoons and sitcoms. | ||
| Post# 902371 , Reply# 10 10/9/2016 at 11:12 (2,749 days old) by Wishwash (Indiana) | ||
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These will spin without fault at high speed if the load is off, yes. I've noticed this a few times with loads of towels. The comforter was just so heavy that it would bang around before it could get up and go. | ||
| Post# 902383 , Reply# 11 10/9/2016 at 13:07 (2,749 days old) by murando531 (Augusta, Georgia - US) | ||
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Not to say it can't happen, of course. Machines can be unpredictable by all means. The rotor-position sensor should detect a severely off balance load, but it can start banging the cabinet before it makes the decision to stop and proceed with filling and agitating to redistribute. But that video in particular seems off. Knowing the VMW design inside and out like the back of my hand, there's just no physically possible way that washer could buck like a bull and then look perfectly centered and balanced when the lid is opened. The tub would have been sitting lop sided after an episode like that, because the only logical explanation would be a suspension rod or mount broken. Could the feet of the washer be severely off set to cause it to rock so violently?
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