How to prevent auto-siphoning

see this causes and fix it. God bless you
This happens on new installations usually. The drain hose must be higher than the highest fill height of the washer. If the drain hose is to low it will create a siphon effect and drain the machine. Next is the drain hose is to tight in the standpipe. The standpipe is your homes plumbing. If the drain hose does not have an air gap aroung it, it can cause a siphon effect and start draining your machine as it fills. If none of these are the problem and your drain pump is running at the same time it is filling you will need to replace the control. For top load machines follow this video and for front load machines follow the tutorial.

Water constantly running down the drain, and the washing machine repeatedly topping up with water, can be caused by faulty plumbing. The washing machine may get stuck on a wash, or rinse program, caught in a cycle of filling with water and losing it down the drain. When siphoning has started it can stick forever in this cycle.

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.

If it has detected SUDs it may be trying to rid them. Is your drain hose at least 30 inchs above the floor? If is ain't then gravity may be causing the problem. Is the drain hose jammed tightly into the drain? This may cause a siphoning effect.

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Water constantly running down the drain, and the washing machine repeatedly topping up with water, can be caused by faulty plumbing. The washing machine may get stuck on a wash, or rinse program, caught in a cycle of filling with water and losing it down the drain. When siphoning has started it can stick forever in this cycle. NOTE: These symptoms can also be caused by totally different faults. Indesit washing machines (and some others) for example can force the washing machine into a constant cycle of filling with cold water and pumping the water away if it thinks the washing machine is overheating (possible faulty thermistor). The main difference is that in this scenario, the water is being pumped down the drain and the water pump can be heard running, whereas in siphoning, the water is just running down the drain through gravity.
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.
You should ensure that the plastic crook supplied with the washing machine is fitted to the end of the drain hose. This forces it into a shepherd's hook. The length of drain hose sticking out of the crook should be about 4 or 5 inches. If the plastic crook is missing, I tape the drain hose in.
You could have a bad drain pump solenoid.

hello, 1 possable problem a pretty common problem and the solution is blindingly simple. It’s caused by the drain hose siphoning water out of the washer tub. There are two common causes for siphoning and I’ll explain both of them below.


One cause for siphoning is simply that the drain hose discharge is below the fill level of the washer tub. This picture shows the minimum drain height needed to avoid siphoning.
Another common cause for siphoning is not having an air break between the drain hose and the drain stand pipe. Usually, this isn’t a problem since the drain hose diameter is usually much smaller than the diameter of the drain stand pipe. But sometimes folks will inadvertently remove the air break by duct taping the drain hose to the stand pipe. They might do this because the drain hose keeps popping out of the stand pipe when the washer pumps out the tub. Other times, the drain hose might fit into the stand pipe with a tight interference fit.also check your water inlet valve filter/screen make sure its not clogged.