Tip & How-To about Washing Machines
Auto- siphoning is caused by having your drain hose to low to the base of the machine. It is also cause by a hose being jammed into the drain. Some machines use a flap in the pump to keep water in the tub then a solenoid of some sort open the flap. A object gets in the flap and it stays open. Easy peasy fix.
Posted by Dan... on
Sep 30, 2012 | Washing Machines
Siphoning occurs when the end of the drain hose is lower than the level of the water inside the washing machine. It's exactly the same principal as siphoning beer out of a barrel into bottles or siphoning petrol from a tank. If the end of the drain hose is very low, then water can siphon out as soon as it enters the washing machine. If it's just slightly lower than it should be, then siphoning is usually triggered when the washing machine first pumps water out or even just occasionally.
This fault most often occurs when the washing machine has been moved out for cleaning or relocated in a new house etc. It can also occur if a drain hoses stand pipe isn't properly secured to the wall and falls over at an angle.
The drain hose should also not be pushed down too far down into the waste water pipe, which can cause siphoning just the same as if the stand pipe is too low. It needs to go just far enough in to prevent it falling out but it will fall out if not secured properly with a crook or tape. If the stand pipe that the drain hose is being pushed into is too low, then it may need raising. It could have fallen through the floor boards in which case you can gently raise it and secure it to the wall with proper brackets. If it was just installed too short, you can add a small extension piece.
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